66110610012 has 48 divisors (see below), whose sum is σ = 156873959424. Its totient is φ = 21663576000.

The previous prime is 66110610011. The next prime is 66110610017. The reversal of 66110610012 is 21001601166.

It is a super-2 number, since 2×66110610012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66110610011) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1345437 + ... + 1393707.

It is an arithmetic number, because the mean of its divisors is an integer number (3268207488).

Almost surely, 2^66110610012 is an apocalyptic number.

It is an amenable number.

66110610012 is an abundant number, since it is smaller than the sum of its proper divisors (90763349412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66110610012 is a wasteful number, since it uses less digits than its factorization.

66110610012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50210 (or 50208 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 66110610012 in words is "sixty-six billion, one hundred ten million, six hundred ten thousand, twelve".