265461132657 has 16 divisors (see below), whose sum is σ = 405433656320. Its totient is φ = 151346530512.

The previous prime is 265461132649. The next prime is 265461132661. The reversal of 265461132657 is 756231164562.

It is not a de Polignac number, because 265461132657 - 2³ = 265461132649 is a prime.

It is a super-2 number, since 2×265461132657² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (265461132647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14388283 + ... + 14406720.

It is an arithmetic number, because the mean of its divisors is an integer number (25339603520).

Almost surely, 2^265461132657 is an apocalyptic number.

It is an amenable number.

265461132657 is a deficient number, since it is larger than the sum of its proper divisors (139972523663).

265461132657 is a wasteful number, since it uses less digits than its factorization.

265461132657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28795452.

The product of its digits is 1814400, while the sum is 48.

The spelling of 265461132657 in words is "two hundred sixty-five billion, four hundred sixty-one million, one hundred thirty-two thousand, six hundred fifty-seven".