668688162 has 8 divisors (see below), whose sum is σ = 1337376336. Its totient is φ = 222896052.

The previous prime is 668688157. The next prime is 668688173. The reversal of 668688162 is 261886866.

It is a sphenic number, since it is the product of 3 distinct primes.

668688162 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55724008 + ... + 55724019.

It is an arithmetic number, because the mean of its divisors is an integer number (167172042).

Almost surely, 2^668688162 is an apocalyptic number.

668688162 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

668688162 is a wasteful number, since it uses less digits than its factorization.

668688162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111448032.

The product of its digits is 1327104, while the sum is 51.

The square root of 668688162 is about 25859.0054333108. The cubic root of 668688162 is about 874.4625431938.

The spelling of 668688162 in words is "six hundred sixty-eight million, six hundred eighty-eight thousand, one hundred sixty-two".