155262513656 has 32 divisors (see below), whose sum is σ = 305709409440. Its totient is φ = 73783003008.

The previous prime is 155262513641. The next prime is 155262513701. The reversal of 155262513656 is 656315262551.

It is a self number, because there is not a number n which added to its sum of digits gives 155262513656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2658431 + ... + 2716206.

It is an arithmetic number, because the mean of its divisors is an integer number (9553419045).

Almost surely, 2^155262513656 is an apocalyptic number.

It is an amenable number.

155262513656 is a deficient number, since it is larger than the sum of its proper divisors (150446895784).

155262513656 is a wasteful number, since it uses less digits than its factorization.

155262513656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374823 (or 5374819 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 47.

The spelling of 155262513656 in words is "one hundred fifty-five billion, two hundred sixty-two million, five hundred thirteen thousand, six hundred fifty-six".