215120560 has 20 divisors (see below), whose sum is σ = 500155488. Its totient is φ = 86048192.

The previous prime is 215120537. The next prime is 215120569. The reversal of 215120560 is 65021512.

215120560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (215120569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344424 + ... + 1344583.

Almost surely, 2^215120560 is an apocalyptic number.

215120560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215120560 is an abundant number, since it is smaller than the sum of its proper divisors (285034928).

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

215120560 is a wasteful number, since it uses less digits than its factorization.

215120560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689020 (or 2689014 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 215120560 is about 14666.9887843415. The cubic root of 215120560 is about 599.1845960664.

The spelling of 215120560 in words is "two hundred fifteen million, one hundred twenty thousand, five hundred sixty".