668001777200 has 60 divisors (see below), whose sum is σ = 1612480512648. Its totient is φ = 265934323200.

The previous prime is 668001777181. The next prime is 668001777251. The reversal of 668001777200 is 2777100866.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3872957 + ... + 4041756.

Almost surely, 2^668001777200 is an apocalyptic number.

It is an amenable number.

668001777200 is an abundant number, since it is smaller than the sum of its proper divisors (944478735448).

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

668001777200 is a wasteful number, since it uses less digits than its factorization.

668001777200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914942 (or 7914931 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 668001777200 in words is "six hundred sixty-eight billion, one million, seven hundred seventy-seven thousand, two hundred".