264406255632321 has 64 divisors (see below), whose sum is σ = 407329221574656. Its totient is φ = 150981150196800.

The previous prime is 264406255632107. The next prime is 264406255632347. The reversal of 264406255632321 is 123236552604462.

It is not a de Polignac number, because 264406255632321 - 2²⁵ = 264406222077889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264406255632391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 796548016 + ... + 796879886.

It is an arithmetic number, because the mean of its divisors is an integer number (6364519087104).

Almost surely, 2^{264406255632321} is an apocalyptic number.

It is an amenable number.

264406255632321 is a deficient number, since it is larger than the sum of its proper divisors (142922965942335).

264406255632321 is a wasteful number, since it uses less digits than its factorization.

264406255632321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347642.

The product of its (nonzero) digits is 12441600, while the sum is 51.

The spelling of 264406255632321 in words is "two hundred sixty-four trillion, four hundred six billion, two hundred fifty-five million, six hundred thirty-two thousand, three hundred twenty-one".