64180992180 has 24 divisors (see below), whose sum is σ = 179706778272. Its totient is φ = 17114931232.

The previous prime is 64180992157. The next prime is 64180992247. The reversal of 64180992180 is 8129908146.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534841542 + ... + 534841661.

It is an arithmetic number, because the mean of its divisors is an integer number (7487782428).

Almost surely, 2^64180992180 is an apocalyptic number.

64180992180 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64180992180 is an abundant number, since it is smaller than the sum of its proper divisors (115525786092).

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

64180992180 is a wasteful number, since it uses less digits than its factorization.

64180992180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069683215 (or 1069683213 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 64180992180 in words is "sixty-four billion, one hundred eighty million, nine hundred ninety-two thousand, one hundred eighty".