215993119880 has 32 divisors (see below), whose sum is σ = 514571846040. Its totient is φ = 81315056640.

The previous prime is 215993119801. The next prime is 215993119891. The reversal of 215993119880 is 88911399512.

It can be written as a sum of positive squares in 4 ways, for example, as 207638794276 + 8354325604 = 455674^2 + 91402^2 .

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, 158817791 + ... + 158819150.

Almost surely, 2^215993119880 is an apocalyptic number.

215993119880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215993119880 is an abundant number, since it is smaller than the sum of its proper divisors (298578726160).

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

215993119880 is a wasteful number, since it uses less digits than its factorization.

215993119880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317636969 (or 317636965 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 56.

The spelling of 215993119880 in words is "two hundred fifteen billion, nine hundred ninety-three million, one hundred nineteen thousand, eight hundred eighty".