264366503665564 has 24 divisors (see below), whose sum is σ = 464402477468160. Its totient is φ = 131680085869104.

The previous prime is 264366503665559. The next prime is 264366503665567. The reversal of 264366503665564 is 465566305663462.

It is a self number, because there is not a number n which added to its sum of digits gives 264366503665564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264366503665567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352970617 + ... + 353718799.

It is an arithmetic number, because the mean of its divisors is an integer number (19350103227840).

Almost surely, 2^{264366503665564} is an apocalyptic number.

It is an amenable number.

264366503665564 is a deficient number, since it is larger than the sum of its proper divisors (200035973802596).

264366503665564 is a wasteful number, since it uses less digits than its factorization.

264366503665564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084329 (or 1084327 counting only the distinct ones).

The product of its (nonzero) digits is 1679616000, while the sum is 67.

The spelling of 264366503665564 in words is "two hundred sixty-four trillion, three hundred sixty-six billion, five hundred three million, six hundred sixty-five thousand, five hundred sixty-four".