66664600000632 has 48 divisors (see below), whose sum is σ = 190052587725000. Its totient is φ = 21051978947136.

The previous prime is 66664600000619. The next prime is 66664600000699. The reversal of 66664600000632 is 23600000646666.

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, 24365715007 + ... + 24365717742.

Almost surely, 2^{66664600000632} is an apocalyptic number.

It is an amenable number.

66664600000632 is an abundant number, since it is smaller than the sum of its proper divisors (123387987724368).

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

66664600000632 is a wasteful number, since it uses less digits than its factorization.

66664600000632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48731432780 (or 48731432773 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 66664600000632 in words is "sixty-six trillion, six hundred sixty-four billion, six hundred million, six hundred thirty-two", and thus it is an aban number.