264576680666 has 48 divisors (see below), whose sum is σ = 433554194304. Its totient is φ = 120963323712.

The previous prime is 264576680659. The next prime is 264576680699. The reversal of 264576680666 is 666086675462.

It is a junction number, because it is equal to n+sod(n) for n = 264576680599 and 264576680608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2076350 + ... + 2200086.

It is an arithmetic number, because the mean of its divisors is an integer number (9032379048).

Almost surely, 2^264576680666 is an apocalyptic number.

264576680666 is a deficient number, since it is larger than the sum of its proper divisors (168977513638).

264576680666 is a wasteful number, since it uses less digits than its factorization.

264576680666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123875 (or 123852 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 62.

The spelling of 264576680666 in words is "two hundred sixty-four billion, five hundred seventy-six million, six hundred eighty thousand, six hundred sixty-six".