66044270635164 has 36 divisors (see below), whose sum is σ = 175731831224040. Its totient is φ = 20856085463520.

The previous prime is 66044270635141. The next prime is 66044270635171. The reversal of 66044270635164 is 46153607244066.

It is a happy number.

66044270635164 is a `hidden beast` number, since 6 + 6 + 0 + 44 + 27 + 0 + 63 + 516 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 66044270635164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48277974927 + ... + 48277976294.

Almost surely, 2^{66044270635164} is an apocalyptic number.

It is an amenable number.

66044270635164 is an abundant number, since it is smaller than the sum of its proper divisors (109687560588876).

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

66044270635164 is a wasteful number, since it uses less digits than its factorization.

66044270635164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96555951250 (or 96555951245 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 54.

The spelling of 66044270635164 in words is "sixty-six trillion, forty-four billion, two hundred seventy million, six hundred thirty-five thousand, one hundred sixty-four".