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164462212721 = 4133112118651
BaseRepresentation
bin1001100100101010110…
…1100011011001110001
3120201111122200001002202
42121022231203121301
510143304311301341
6203315231552545
714611345512512
oct2311255433161
9521448601082
10164462212721
11638256a4674
1227a5a08b755
131267c872a91
147d623c4a09
1544285b479b
hex264ab63671

164462212721 has 8 divisors (see below), whose sum is σ = 168982483488. Its totient is φ = 159966180000.

The previous prime is 164462212711. The next prime is 164462212829. The reversal of 164462212721 is 127212264461.

164462212721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164462212721 - 214 = 164462196337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164462212711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6045755 + ... + 6072896.

It is an arithmetic number, because the mean of its divisors is an integer number (21122810436).

Almost surely, 2164462212721 is an apocalyptic number.

It is an amenable number.

164462212721 is a deficient number, since it is larger than the sum of its proper divisors (4520270767).

164462212721 is a wasteful number, since it uses less digits than its factorization.

164462212721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12119023.

The product of its digits is 64512, while the sum is 38.

The spelling of 164462212721 in words is "one hundred sixty-four billion, four hundred sixty-two million, two hundred twelve thousand, seven hundred twenty-one".

Divisors: 1 41 331 13571 12118651 496864691 4011273481 164462212721