65166057071512 has 64 divisors (see below), whose sum is σ = 129268579478400. Its totient is φ = 30712185504000.

The previous prime is 65166057071473. The next prime is 65166057071537. The reversal of 65166057071512 is 21517075066156.

It is a super-2 number, since 2×65166057071512² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65166057071512.

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, 23384212 + ... + 26022172.

It is an arithmetic number, because the mean of its divisors is an integer number (2019821554350).

Almost surely, 2^{65166057071512} is an apocalyptic number.

It is an amenable number.

65166057071512 is a deficient number, since it is larger than the sum of its proper divisors (64102522406888).

65166057071512 is a wasteful number, since it uses less digits than its factorization.

65166057071512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638808 (or 2638804 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 52.

The spelling of 65166057071512 in words is "sixty-five trillion, one hundred sixty-six billion, fifty-seven million, seventy-one thousand, five hundred twelve".