66734808132 has 12 divisors (see below), whose sum is σ = 155714552336. Its totient is φ = 22244936040.

The previous prime is 66734808113. The next prime is 66734808181. The reversal of 66734808132 is 23180843766.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780616994 + ... + 2780617017.

Almost surely, 2^66734808132 is an apocalyptic number.

It is an amenable number.

66734808132 is an abundant number, since it is smaller than the sum of its proper divisors (88979744204).

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

66734808132 is a wasteful number, since it uses less digits than its factorization.

66734808132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561234018 (or 5561234016 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 66734808132 in words is "sixty-six billion, seven hundred thirty-four million, eight hundred eight thousand, one hundred thirty-two".