64169336928 has 96 divisors (see below), whose sum is σ = 169388676576. Its totient is φ = 21270233088.

The previous prime is 64169336849. The next prime is 64169336947. The reversal of 64169336928 is 82963396146.

It is a tau number, because it is divible by the number of its divisors (96).

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, 13729600 + ... + 13734272.

It is an arithmetic number, because the mean of its divisors is an integer number (1764465381).

Almost surely, 2^64169336928 is an apocalyptic number.

It is an amenable number.

64169336928 is an abundant number, since it is smaller than the sum of its proper divisors (105219339648).

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

64169336928 is a wasteful number, since it uses less digits than its factorization.

64169336928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5456 (or 5448 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 57.

The spelling of 64169336928 in words is "sixty-four billion, one hundred sixty-nine million, three hundred thirty-six thousand, nine hundred twenty-eight".