668516150 has 12 divisors (see below), whose sum is σ = 1243440132. Its totient is φ = 267406440.

The previous prime is 668516129. The next prime is 668516179. The reversal of 668516150 is 51615866.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6685112 + ... + 6685211.

It is an arithmetic number, because the mean of its divisors is an integer number (103620011).

Almost surely, 2^668516150 is an apocalyptic number.

668516150 is a deficient number, since it is larger than the sum of its proper divisors (574923982).

668516150 is a wasteful number, since it uses less digits than its factorization.

668516150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13370335 (or 13370330 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 668516150 is about 25855.6792600775. The cubic root of 668516150 is about 874.3875551006.

The spelling of 668516150 in words is "six hundred sixty-eight million, five hundred sixteen thousand, one hundred fifty".