659566951172 has 12 divisors (see below), whose sum is σ = 1204426606656. Its totient is φ = 315445063560.

The previous prime is 659566951129. The next prime is 659566951177. The reversal of 659566951172 is 271159665956.

It is not an unprimeable number, because it can be changed into a prime (659566951177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3584602904 + ... + 3584603087.

It is an arithmetic number, because the mean of its divisors is an integer number (100368883888).

Almost surely, 2^659566951172 is an apocalyptic number.

It is an amenable number.

659566951172 is a deficient number, since it is larger than the sum of its proper divisors (544859655484).

659566951172 is a wasteful number, since it uses less digits than its factorization.

659566951172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7169206018 (or 7169206016 counting only the distinct ones).

The product of its digits is 30618000, while the sum is 62.

The spelling of 659566951172 in words is "six hundred fifty-nine billion, five hundred sixty-six million, nine hundred fifty-one thousand, one hundred seventy-two".