668852195 has 16 divisors (see below), whose sum is σ = 876158208. Its totient is φ = 486121440.

The previous prime is 668852179. The next prime is 668852203. The reversal of 668852195 is 591258866.

It is not a de Polignac number, because 668852195 - 2⁴ = 668852179 is a prime.

It is a Duffinian 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, 111872 + ... + 117698.

It is an arithmetic number, because the mean of its divisors is an integer number (54759888).

Almost surely, 2^668852195 is an apocalyptic number.

668852195 is a deficient number, since it is larger than the sum of its proper divisors (207306013).

668852195 is a wasteful number, since it uses less digits than its factorization.

668852195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7930.

The product of its digits is 1036800, while the sum is 50.

The square root of 668852195 is about 25862.1769192000. The cubic root of 668852195 is about 874.5340408889.

The spelling of 668852195 in words is "six hundred sixty-eight million, eight hundred fifty-two thousand, one hundred ninety-five".