66962628882 has 78 divisors (see below), whose sum is σ = 151268474199. Its totient is φ = 22231948500.

The previous prime is 66962628857. The next prime is 66962628911. The reversal of 66962628882 is 28882626966.

It can be written as a sum of positive squares in only one way, i.e., 33481314441 + 33481314441 = 182979^2 + 182979^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=182979.

Its product of digits (47775744) is a multiple of the sum of its prime divisors (256).

It is an unprimeable number.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 266783257 + ... + 266783507.

Almost surely, 2^66962628882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66962628882

66962628882 is an abundant number, since it is smaller than the sum of its proper divisors (84305845317).

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

66962628882 is an frugal number, since it uses more digits than its factorization.

66962628882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 256 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 63.

The spelling of 66962628882 in words is "sixty-six billion, nine hundred sixty-two million, six hundred twenty-eight thousand, eight hundred eighty-two".