155726764864 has 28 divisors (see below), whose sum is σ = 337113055008. Its totient is φ = 70784892800.

The previous prime is 155726764841. The next prime is 155726764903. The reversal of 155726764864 is 468467627551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110600692 + ... + 110602099.

Almost surely, 2^155726764864 is an apocalyptic number.

It is an amenable number.

155726764864 is an abundant number, since it is smaller than the sum of its proper divisors (181386290144).

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

155726764864 is a wasteful number, since it uses less digits than its factorization.

155726764864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221202814 (or 221202804 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 61.

The spelling of 155726764864 in words is "one hundred fifty-five billion, seven hundred twenty-six million, seven hundred sixty-four thousand, eight hundred sixty-four".