668110875 has 32 divisors (see below), whose sum is σ = 1135420416. Its totient is φ = 348735200.

The previous prime is 668110871. The next prime is 668110879. The reversal of 668110875 is 578011866.

It is an interprime number because it is at equal distance from previous prime (668110871) and next prime (668110879).

It is not a de Polignac number, because 668110875 - 2² = 668110871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (668110871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1329 + ... + 36578.

It is an arithmetic number, because the mean of its divisors is an integer number (35481888).

Almost surely, 2^668110875 is an apocalyptic number.

668110875 is a deficient number, since it is larger than the sum of its proper divisors (467309541).

668110875 is a wasteful number, since it uses less digits than its factorization.

668110875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37972 (or 37962 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 668110875 is about 25847.8408189156. The cubic root of 668110875 is about 874.2108258623.

Subtracting from 668110875 its reverse (578011866), we obtain a palindrome (90099009).

The spelling of 668110875 in words is "six hundred sixty-eight million, one hundred ten thousand, eight hundred seventy-five".