666834664130 has 32 divisors (see below), whose sum is σ = 1297624224960. Its totient is φ = 245865637440.

The previous prime is 666834664129. The next prime is 666834664157. The reversal of 666834664130 is 31466438666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47420756 + ... + 47434815.

It is an arithmetic number, because the mean of its divisors is an integer number (40550757030).

Almost surely, 2^666834664130 is an apocalyptic number.

666834664130 is a deficient number, since it is larger than the sum of its proper divisors (630789560830).

666834664130 is a wasteful number, since it uses less digits than its factorization.

666834664130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94855634.

The product of its (nonzero) digits is 8957952, while the sum is 53.

The spelling of 666834664130 in words is "six hundred sixty-six billion, eight hundred thirty-four million, six hundred sixty-four thousand, one hundred thirty".