265426661164 has 36 divisors (see below), whose sum is σ = 553511712600. Its totient is φ = 110979785280.

The previous prime is 265426661141. The next prime is 265426661177. The reversal of 265426661164 is 461166624562.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16506814 + ... + 16522885.

It is an arithmetic number, because the mean of its divisors is an integer number (15375325350).

Almost surely, 2^265426661164 is an apocalyptic number.

It is an amenable number.

265426661164 is an abundant number, since it is smaller than the sum of its proper divisors (288085051436).

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

265426661164 is a wasteful number, since it uses less digits than its factorization.

265426661164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33029758 (or 33029749 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The spelling of 265426661164 in words is "two hundred sixty-five billion, four hundred twenty-six million, six hundred sixty-one thousand, one hundred sixty-four".