265645315112564 has 12 divisors (see below), whose sum is σ = 466146002543424. Its totient is φ = 132460742957304.

The previous prime is 265645315112459. The next prime is 265645315112657. The reversal of 265645315112564 is 465211513546562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90478648094 + ... + 90478651029.

It is an arithmetic number, because the mean of its divisors is an integer number (38845500211952).

Almost surely, 2^{265645315112564} is an apocalyptic number.

It is an amenable number.

265645315112564 is a deficient number, since it is larger than the sum of its proper divisors (200500687430860).

265645315112564 is a wasteful number, since it uses less digits than its factorization.

265645315112564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180957299494 (or 180957299492 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 56.

The spelling of 265645315112564 in words is "two hundred sixty-five trillion, six hundred forty-five billion, three hundred fifteen million, one hundred twelve thousand, five hundred sixty-four".