64156265535404 has 48 divisors (see below), whose sum is σ = 128654417498880. Its totient is φ = 27422284760640.

The previous prime is 64156265535391. The next prime is 64156265535409. The reversal of 64156265535404 is 40453556265146.

It is a self number, because there is not a number n which added to its sum of digits gives 64156265535404.

It is not an unprimeable number, because it can be changed into a prime (64156265535409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735803099 + ... + 735890285.

It is an arithmetic number, because the mean of its divisors is an integer number (2680300364560).

Almost surely, 2^{64156265535404} is an apocalyptic number.

It is an amenable number.

64156265535404 is an abundant number, since it is smaller than the sum of its proper divisors (64498151963476).

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

64156265535404 is a wasteful number, since it uses less digits than its factorization.

64156265535404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156918 (or 156916 counting only the distinct ones).

The product of its (nonzero) digits is 51840000, while the sum is 56.

The spelling of 64156265535404 in words is "sixty-four trillion, one hundred fifty-six billion, two hundred sixty-five million, five hundred thirty-five thousand, four hundred four".