668076876 has 24 divisors (see below), whose sum is σ = 1732051440. Its totient is φ = 222692256.

The previous prime is 668076859. The next prime is 668076887. The reversal of 668076876 is 678670866.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 3092841 + ... + 3093056.

It is an arithmetic number, because the mean of its divisors is an integer number (72168810).

Almost surely, 2^668076876 is an apocalyptic number.

It is an amenable number.

668076876 is an abundant number, since it is smaller than the sum of its proper divisors (1063974564).

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

668076876 is a wasteful number, since it uses less digits than its factorization.

668076876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185910 (or 6185902 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 668076876 is about 25847.1831347248. The cubic root of 668076876 is about 874.1959965881.

The spelling of 668076876 in words is "six hundred sixty-eight million, seventy-six thousand, eight hundred seventy-six".