668360760 has 32 divisors (see below), whose sum is σ = 2005082640. Its totient is φ = 178229504.

The previous prime is 668360753. The next prime is 668360773. The reversal of 668360760 is 67063866.

It is a super-2 number, since 2×668360760² = 893412211015555200, which contains 22 as substring.

It is a congruent number.

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, 2784717 + ... + 2784956.

Almost surely, 2^668360760 is an apocalyptic number.

668360760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

668360760 is an abundant number, since it is smaller than the sum of its proper divisors (1336721880).

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

668360760 is a wasteful number, since it uses less digits than its factorization.

668360760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5569687 (or 5569683 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 668360760 is about 25852.6741363442. The cubic root of 668360760 is about 874.3198022568.

The spelling of 668360760 in words is "six hundred sixty-eight million, three hundred sixty thousand, seven hundred sixty".