666140874037124 has 24 divisors (see below), whose sum is σ = 1174322892960000. Its totient is φ = 330627814165440.

The previous prime is 666140874037091. The next prime is 666140874037231. The reversal of 666140874037124 is 421730478041666.

It is a super-2 number, since 2×666140874037124² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970492649 + ... + 971178800.

It is an arithmetic number, because the mean of its divisors is an integer number (48930120540000).

Almost surely, 2^{666140874037124} is an apocalyptic number.

It is an amenable number.

666140874037124 is a deficient number, since it is larger than the sum of its proper divisors (508182018922876).

666140874037124 is a wasteful number, since it uses less digits than its factorization.

666140874037124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941672083 (or 1941672081 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 59.

The spelling of 666140874037124 in words is "six hundred sixty-six trillion, one hundred forty billion, eight hundred seventy-four million, thirty-seven thousand, one hundred twenty-four".