668808010283 has 8 divisors (see below), whose sum is σ = 779951032800. Its totient is φ = 573264008520.

The previous prime is 668808010279. The next prime is 668808010309. The reversal of 668808010283 is 382010808866.

It is not a de Polignac number, because 668808010283 - 2² = 668808010279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668808010583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974938448 + ... + 974939133.

It is an arithmetic number, because the mean of its divisors is an integer number (97493879100).

Almost surely, 2^668808010283 is an apocalyptic number.

668808010283 is a deficient number, since it is larger than the sum of its proper divisors (111143022517).

668808010283 is an equidigital number, since it uses as much as digits as its factorization.

668808010283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949877602 (or 1949877588 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 668808010283 in words is "six hundred sixty-eight billion, eight hundred eight million, ten thousand, two hundred eighty-three".