265616331252 has 24 divisors (see below), whose sum is σ = 652390989600. Its totient is φ = 83878841376.

The previous prime is 265616331251. The next prime is 265616331257. The reversal of 265616331252 is 252133616562.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265616331251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582491727 + ... + 582492182.

It is an arithmetic number, because the mean of its divisors is an integer number (27182957900).

Almost surely, 2^265616331252 is an apocalyptic number.

It is an amenable number.

265616331252 is an abundant number, since it is smaller than the sum of its proper divisors (386774658348).

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

265616331252 is a wasteful number, since it uses less digits than its factorization.

265616331252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164983935 (or 1164983933 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The spelling of 265616331252 in words is "two hundred sixty-five billion, six hundred sixteen million, three hundred thirty-one thousand, two hundred fifty-two".