320164662666 has 32 divisors (see below), whose sum is σ = 650241865728. Its totient is φ = 105073602480.

The previous prime is 320164662641. The next prime is 320164662677. The reversal of 320164662666 is 666266461023.

It is a super-2 number, since 2×320164662666² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207190 + ... + 826593.

It is an arithmetic number, because the mean of its divisors is an integer number (20320058304).

Almost surely, 2^320164662666 is an apocalyptic number.

320164662666 is an abundant number, since it is smaller than the sum of its proper divisors (330077203062).

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

320164662666 is a wasteful number, since it uses less digits than its factorization.

320164662666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034586.

The product of its (nonzero) digits is 2239488, while the sum is 48.

The spelling of 320164662666 in words is "three hundred twenty billion, one hundred sixty-four million, six hundred sixty-two thousand, six hundred sixty-six".