265604065272 has 288 divisors, whose sum is σ = 906515391600. Its totient is φ = 70047379584.

The previous prime is 265604065241. The next prime is 265604065291. The reversal of 265604065272 is 272560406562.

265604065272 is a `hidden beast` number, since 2 + 6 + 560 + 4 + 0 + 65 + 27 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7733883 + ... + 7768149.

Almost surely, 2^265604065272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265604065272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453257695800).

265604065272 is an abundant number, since it is smaller than the sum of its proper divisors (640911326328).

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

265604065272 is a wasteful number, since it uses less digits than its factorization.

265604065272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34332 (or 34292 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 265604065272 in words is "two hundred sixty-five billion, six hundred four million, sixty-five thousand, two hundred seventy-two".