265401560234465 has 16 divisors (see below), whose sum is σ = 337691113153920. Its totient is φ = 199678223410560.

The previous prime is 265401560234429. The next prime is 265401560234527. The reversal of 265401560234465 is 564432065104562.

It is not a de Polignac number, because 265401560234465 - 2³⁰ = 265400486492641 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10195974701 + ... + 10196000730.

It is an arithmetic number, because the mean of its divisors is an integer number (21105694572120).

Almost surely, 2^{265401560234465} is an apocalyptic number.

It is an amenable number.

265401560234465 is a deficient number, since it is larger than the sum of its proper divisors (72289552919455).

265401560234465 is a wasteful number, since it uses less digits than its factorization.

265401560234465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20391975592.

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 265401560234465 in words is "two hundred sixty-five trillion, four hundred one billion, five hundred sixty million, two hundred thirty-four thousand, four hundred sixty-five".