666800013468 has 48 divisors (see below), whose sum is σ = 1647477667584. Its totient is φ = 209180808960.

The previous prime is 666800013457. The next prime is 666800013493. The reversal of 666800013468 is 864310008666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4182703 + ... + 4339193.

It is an arithmetic number, because the mean of its divisors is an integer number (34322451408).

Almost surely, 2^666800013468 is an apocalyptic number.

666800013468 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

666800013468 is an abundant number, since it is smaller than the sum of its proper divisors (980677654116).

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

666800013468 is a wasteful number, since it uses less digits than its factorization.

666800013468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177402 (or 177400 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 666800013468 in words is "six hundred sixty-six billion, eight hundred million, thirteen thousand, four hundred sixty-eight".