866072905504 has 48 divisors (see below), whose sum is σ = 1717200444960. Its totient is φ = 429969415680.

The previous prime is 866072905499. The next prime is 866072905513. The reversal of 866072905504 is 405509270668.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374567 + ... + 2714905.

It is an arithmetic number, because the mean of its divisors is an integer number (35775009270).

Almost surely, 2^866072905504 is an apocalyptic number.

It is an amenable number.

866072905504 is a deficient number, since it is larger than the sum of its proper divisors (851127539456).

866072905504 is a wasteful number, since it uses less digits than its factorization.

866072905504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340913 (or 340905 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 866072905504 in words is "eight hundred sixty-six billion, seventy-two million, nine hundred five thousand, five hundred four".