791660806172 has 36 divisors (see below), whose sum is σ = 1479916844280. Its totient is φ = 370464900864.

The previous prime is 791660806159. The next prime is 791660806193. The reversal of 791660806172 is 271608066197.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1706003 + ... + 2119850.

It is an arithmetic number, because the mean of its divisors is an integer number (41108801230).

Almost surely, 2^791660806172 is an apocalyptic number.

It is an amenable number.

791660806172 is a deficient number, since it is larger than the sum of its proper divisors (688256038108).

791660806172 is a wasteful number, since it uses less digits than its factorization.

791660806172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826070 (or 3826051 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 791660806172 in words is "seven hundred ninety-one billion, six hundred sixty million, eight hundred six thousand, one hundred seventy-two".