215506160 has 40 divisors (see below), whose sum is σ = 501771456. Its totient is φ = 86078720.

The previous prime is 215506133. The next prime is 215506169. The reversal of 215506160 is 61605512.

215506160 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 (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215506169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71402 + ... + 74358.

Almost surely, 2^215506160 is an apocalyptic number.

215506160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215506160 is an abundant number, since it is smaller than the sum of its proper divisors (286265296).

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

215506160 is a wasteful number, since it uses less digits than its factorization.

215506160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881 (or 3875 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 215506160 is about 14680.1280648365. The cubic root of 215506160 is about 599.5423918207.

The spelling of 215506160 in words is "two hundred fifteen million, five hundred six thousand, one hundred sixty".