215297214180 has 48 divisors (see below), whose sum is σ = 602876811264. Its totient is φ = 57408341760.

The previous prime is 215297214149. The next prime is 215297214191. The reversal of 215297214180 is 81412792512.

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 15 ways as a sum of consecutive naturals, for example, 731229 + ... + 982491.

It is an arithmetic number, because the mean of its divisors is an integer number (12559933568).

Almost surely, 2^215297214180 is an apocalyptic number.

215297214180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215297214180 is an abundant number, since it is smaller than the sum of its proper divisors (387579597084).

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

215297214180 is a wasteful number, since it uses less digits than its factorization.

215297214180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265556 (or 265554 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 215297214180 in words is "two hundred fifteen billion, two hundred ninety-seven million, two hundred fourteen thousand, one hundred eighty".