264626633381564 has 6 divisors (see below), whose sum is σ = 463096608417744. Its totient is φ = 132313316690780.

The previous prime is 264626633381549. The next prime is 264626633381573. The reversal of 264626633381564 is 465183336626462.

It is a self number, because there is not a number n which added to its sum of digits gives 264626633381564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33078329172692 + ... + 33078329172699.

It is an arithmetic number, because the mean of its divisors is an integer number (77182768069624).

Almost surely, 2^{264626633381564} is an apocalyptic number.

It is an amenable number.

264626633381564 is a deficient number, since it is larger than the sum of its proper divisors (198469975036180).

264626633381564 is a wasteful number, since it uses less digits than its factorization.

264626633381564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66156658345395 (or 66156658345393 counting only the distinct ones).

The product of its digits is 537477120, while the sum is 65.

The spelling of 264626633381564 in words is "two hundred sixty-four trillion, six hundred twenty-six billion, six hundred thirty-three million, three hundred eighty-one thousand, five hundred sixty-four".