215297230020 has 24 divisors (see below), whose sum is σ = 602832244224. Its totient is φ = 57412594656.

The previous prime is 215297229989. The next prime is 215297230033. The reversal of 215297230020 is 20032792512.

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, 1794143524 + ... + 1794143643.

It is an arithmetic number, because the mean of its divisors is an integer number (25118010176).

Almost surely, 2^215297230020 is an apocalyptic number.

215297230020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215297230020 is an abundant number, since it is smaller than the sum of its proper divisors (387535014204).

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

215297230020 is a wasteful number, since it uses less digits than its factorization.

215297230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588287179 (or 3588287177 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 215297230020 in words is "two hundred fifteen billion, two hundred ninety-seven million, two hundred thirty thousand, twenty".