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64055664135980 = 22511291162109709
BaseRepresentation
bin11101001000010000111110…
…00110110100111100101100
322101210122212100222022101022
432210020133012310330230
531343442000004322410
6344122433232033312
716330604033332346
oct1644103706647454
9271718770868338
1064055664135980
1119456944527a40
127226500392838
132998566a3879a
1411b644c748296
1576137c7e5455
hex3a421f1b4f2c

64055664135980 has 24 divisors (see below), whose sum is σ = 146745703293840. Its totient is φ = 23292968776640.

The previous prime is 64055664135979. The next prime is 64055664136031. The reversal of 64055664135980 is 8953146655046.

64055664135980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145581054635 + ... + 145581055074.

It is an arithmetic number, because the mean of its divisors is an integer number (6114404303910).

Almost surely, 264055664135980 is an apocalyptic number.

It is an amenable number.

64055664135980 is an abundant number, since it is smaller than the sum of its proper divisors (82690039157860).

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

64055664135980 is a wasteful number, since it uses less digits than its factorization.

64055664135980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291162109729 (or 291162109727 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 62.

The spelling of 64055664135980 in words is "sixty-four trillion, fifty-five billion, six hundred sixty-four million, one hundred thirty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 291162109709 582324219418 1164648438836 1455810548545 2911621097090 3202783206799 5823242194180 6405566413598 12811132827196 16013916033995 32027832067990 64055664135980