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164142530219868 = 223173142755407659
BaseRepresentation
bin100101010100100101101001…
…001101001100111101011100
3210112011212120011011010002020
4211110211221031030331130
5133003302400214013433
61341034012024300140
746400622626154534
oct4524455115147534
9715155504133066
10164142530219868
1148334502138692
12164abb09311650
137078760632365
142c767801524c4
1513e9acd248cb3
hex95496934cf5c

164142530219868 has 48 divisors (see below), whose sum is σ = 385483058674560. Its totient is φ = 54359788371904.

The previous prime is 164142530219839. The next prime is 164142530219881. The reversal of 164142530219868 is 868912035241461.

164142530219868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24741378 + ... + 30666281.

It is an arithmetic number, because the mean of its divisors is an integer number (8030897055720).

Almost surely, 2164142530219868 is an apocalyptic number.

It is an amenable number.

164142530219868 is an abundant number, since it is smaller than the sum of its proper divisors (221340528454692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164142530219868 is a wasteful number, since it uses less digits than its factorization.

164142530219868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55409266 (or 55409264 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 164142530219868 in words is "one hundred sixty-four trillion, one hundred forty-two billion, five hundred thirty million, two hundred nineteen thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 173 346 519 692 1038 1427 2076 2854 4281 5708 8562 17124 246871 493742 740613 987484 1481226 2962452 55407659 110815318 166222977 221630636 332445954 664891908 9585525007 19171050014 28756575021 38342100028 57513150042 79066729393 115026300084 158133458786 237200188179 316266917572 474400376358 948800752716 13678544184989 27357088369978 41035632554967 54714176739956 82071265109934 164142530219868