668358170 has 32 divisors (see below), whose sum is σ = 1223838720. Its totient is φ = 262753920.

The previous prime is 668358167. The next prime is 668358181. The reversal of 668358170 is 71853866.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 182255 + ... + 185885.

It is an arithmetic number, because the mean of its divisors is an integer number (38244960).

Almost surely, 2^668358170 is an apocalyptic number.

668358170 is a deficient number, since it is larger than the sum of its proper divisors (555480550).

668358170 is a wasteful number, since it uses less digits than its factorization.

668358170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 668358170 is about 25852.6240447657. The cubic root of 668358170 is about 874.3186728811.

The spelling of 668358170 in words is "six hundred sixty-eight million, three hundred fifty-eight thousand, one hundred seventy".