265145653461 has 16 divisors (see below), whose sum is σ = 381605333760. Its totient is φ = 162787968960.

The previous prime is 265145653457. The next prime is 265145653489. The reversal of 265145653461 is 164356541562.

It is a happy number.

It is not a de Polignac number, because 265145653461 - 2² = 265145653457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265145653461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265145657461) 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, 7870206 + ... + 7903823.

It is an arithmetic number, because the mean of its divisors is an integer number (23850333360).

Almost surely, 2^265145653461 is an apocalyptic number.

It is an amenable number.

265145653461 is a deficient number, since it is larger than the sum of its proper divisors (116459680299).

265145653461 is a wasteful number, since it uses less digits than its factorization.

265145653461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15774476.

The product of its digits is 2592000, while the sum is 48.

The spelling of 265145653461 in words is "two hundred sixty-five billion, one hundred forty-five million, six hundred fifty-three thousand, four hundred sixty-one".