668549063048 has 32 divisors (see below), whose sum is σ = 1362069408000. Its totient is φ = 306465612480.

The previous prime is 668549063027. The next prime is 668549063113. The reversal of 668549063048 is 840360945866.

It is a happy 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, 70936403 + ... + 70945826.

It is an arithmetic number, because the mean of its divisors is an integer number (42564669000).

Almost surely, 2^668549063048 is an apocalyptic number.

It is an amenable number.

668549063048 is an abundant number, since it is smaller than the sum of its proper divisors (693520344952).

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

668549063048 is a wasteful number, since it uses less digits than its factorization.

668549063048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141882285 (or 141882281 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 59.

The spelling of 668549063048 in words is "six hundred sixty-eight billion, five hundred forty-nine million, sixty-three thousand, forty-eight".