664712264726170 has 128 divisors (see below), whose sum is σ = 1266416993479680. Its totient is φ = 250926808704000.

The previous prime is 664712264726093. The next prime is 664712264726189. The reversal of 664712264726170 is 71627462217466.

664712264726170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 664712264726099 and 664712264726108.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6015385920 + ... + 6015496420.

It is an arithmetic number, because the mean of its divisors is an integer number (9893882761560).

Almost surely, 2^{664712264726170} is an apocalyptic number.

664712264726170 is a deficient number, since it is larger than the sum of its proper divisors (601704728753510).

664712264726170 is a wasteful number, since it uses less digits than its factorization.

664712264726170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114760.

The product of its (nonzero) digits is 56899584, while the sum is 61.

The spelling of 664712264726170 in words is "six hundred sixty-four trillion, seven hundred twelve billion, two hundred sixty-four million, seven hundred twenty-six thousand, one hundred seventy".