66307964892 has 96 divisors (see below), whose sum is σ = 172866355200. Its totient is φ = 19641683712.

The previous prime is 66307964873. The next prime is 66307964903. The reversal of 66307964892 is 29846970366.

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, 1548709 + ... + 1590947.

It is an arithmetic number, because the mean of its divisors is an integer number (1800691200).

Almost surely, 2^66307964892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66307964892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86433177600).

66307964892 is an abundant number, since it is smaller than the sum of its proper divisors (106558390308).

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

66307964892 is a wasteful number, since it uses less digits than its factorization.

66307964892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42635 (or 42633 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 66307964892 in words is "sixty-six billion, three hundred seven million, nine hundred sixty-four thousand, eight hundred ninety-two".