66187080882 has 128 divisors (see below), whose sum is σ = 159516403200. Its totient is φ = 20221892352.

The previous prime is 66187080863. The next prime is 66187080919. The reversal of 66187080882 is 28808078166.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90295788 + ... + 90296520.

It is an arithmetic number, because the mean of its divisors is an integer number (1246221900).

Almost surely, 2^66187080882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66187080882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79758201600).

66187080882 is an abundant number, since it is smaller than the sum of its proper divisors (93329322318).

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

66187080882 is a wasteful number, since it uses less digits than its factorization.

66187080882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1483 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 66187080882 in words is "sixty-six billion, one hundred eighty-seven million, eighty thousand, eight hundred eighty-two".