70665800660 has 48 divisors (see below), whose sum is σ = 182643920256. Its totient is φ = 22364560512.

The previous prime is 70665800641. The next prime is 70665800839. The reversal of 70665800660 is 6600856607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19411862 + ... + 19415501.

It is an arithmetic number, because the mean of its divisors is an integer number (3805081672).

Almost surely, 2^70665800660 is an apocalyptic number.

70665800660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70665800660 is an abundant number, since it is smaller than the sum of its proper divisors (111978119596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70665800660 is a wasteful number, since it uses less digits than its factorization.

70665800660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38827392 (or 38827390 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 70665800660 in words is "seventy billion, six hundred sixty-five million, eight hundred thousand, six hundred sixty".