668850880 has 28 divisors (see below), whose sum is σ = 1592701920. Its totient is φ = 267540224.

The previous prime is 668850877. The next prime is 668850953. The reversal of 668850880 is 88058866.

It is a super-2 number, since 2×668850880² = 894722999353548800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044760 + ... + 1045399.

Almost surely, 2^668850880 is an apocalyptic number.

It is an amenable number.

668850880 is an abundant number, since it is smaller than the sum of its proper divisors (923851040).

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

668850880 is a wasteful number, since it uses less digits than its factorization.

668850880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090176 (or 2090166 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 668850880 is about 25862.1514959603. The cubic root of 668850880 is about 874.5334677613.

The spelling of 668850880 in words is "six hundred sixty-eight million, eight hundred fifty thousand, eight hundred eighty".