66344566563132 has 96 divisors (see below), whose sum is σ = 181969290263040. Its totient is φ = 18547546510080.

The previous prime is 66344566563109. The next prime is 66344566563169. The reversal of 66344566563132 is 23136566544366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7735648 + ... + 13875495.

It is an arithmetic number, because the mean of its divisors is an integer number (1895513440240).

Almost surely, 2^{66344566563132} is an apocalyptic number.

It is an amenable number.

66344566563132 is an abundant number, since it is smaller than the sum of its proper divisors (115624723699908).

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

66344566563132 is a wasteful number, since it uses less digits than its factorization.

66344566563132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21612963 (or 21612961 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 60.

The spelling of 66344566563132 in words is "sixty-six trillion, three hundred forty-four billion, five hundred sixty-six million, five hundred sixty-three thousand, one hundred thirty-two".