664353364656170 has 64 divisors (see below), whose sum is σ = 1405860943334400. Its totient is φ = 221292925808640.

The previous prime is 664353364656167. The next prime is 664353364656181. The reversal of 664353364656170 is 71656463353466.

It is a junction number, because it is equal to n+sod(n) for n = 664353364656097 and 664353364656106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483586055 + ... + 484957914.

It is an arithmetic number, because the mean of its divisors is an integer number (21966577239600).

Almost surely, 2^{664353364656170} is an apocalyptic number.

664353364656170 is an abundant number, since it is smaller than the sum of its proper divisors (741507578678230).

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

664353364656170 is a wasteful number, since it uses less digits than its factorization.

664353364656170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968544263.

The product of its (nonzero) digits is 587865600, while the sum is 65.

The spelling of 664353364656170 in words is "six hundred sixty-four trillion, three hundred fifty-three billion, three hundred sixty-four million, six hundred fifty-six thousand, one hundred seventy".