668414162 has 16 divisors (see below), whose sum is σ = 1090440792. Its totient is φ = 305443200.

The previous prime is 668414137. The next prime is 668414203. The reversal of 668414162 is 261414866.

It can be written as a sum of positive squares in 4 ways, for example, as 656435641 + 11978521 = 25621^2 + 3461^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124643 + ... + 129894.

Almost surely, 2^668414162 is an apocalyptic number.

668414162 is a deficient number, since it is larger than the sum of its proper divisors (422026630).

668414162 is a wasteful number, since it uses less digits than its factorization.

668414162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254653.

The product of its digits is 55296, while the sum is 38.

The square root of 668414162 is about 25853.7069295681. The cubic root of 668414162 is about 874.3430876766.

The spelling of 668414162 in words is "six hundred sixty-eight million, four hundred fourteen thousand, one hundred sixty-two".