66110616512 has 14 divisors (see below), whose sum is σ = 131188254768. Its totient is φ = 33055308224.

The previous prime is 66110616469. The next prime is 66110616541. The reversal of 66110616512 is 21561601166.

It is a super-2 number, since 2×66110616512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516489128 + ... + 516489255.

Almost surely, 2^66110616512 is an apocalyptic number.

It is an amenable number.

66110616512 is a deficient number, since it is larger than the sum of its proper divisors (65077638256).

66110616512 is a wasteful number, since it uses less digits than its factorization.

66110616512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032978395 (or 1032978385 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 66110616512 in words is "sixty-six billion, one hundred ten million, six hundred sixteen thousand, five hundred twelve".