512316521966 has 16 divisors (see below), whose sum is σ = 833525017920. Its totient is φ = 235209880320.

The previous prime is 512316521939. The next prime is 512316521971. The reversal of 512316521966 is 669125613215.

It is a self number, because there is not a number n which added to its sum of digits gives 512316521966.

It is a congruent 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, 183756326 + ... + 183759113.

It is an arithmetic number, because the mean of its divisors is an integer number (52095313620).

Almost surely, 2^512316521966 is an apocalyptic number.

512316521966 is a deficient number, since it is larger than the sum of its proper divisors (321208495954).

512316521966 is a wasteful number, since it uses less digits than its factorization.

512316521966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367515499.

The product of its digits is 583200, while the sum is 47.

The spelling of 512316521966 in words is "five hundred twelve billion, three hundred sixteen million, five hundred twenty-one thousand, nine hundred sixty-six".