215936512 has 80 divisors (see below), whose sum is σ = 491432832. Its totient is φ = 93829120.

The previous prime is 215936503. The next prime is 215936527. The reversal of 215936512 is 215639512.

215936512 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×215936512² = 93257154429452288, which contains 22 as substring.

It is a congruent number.

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, 128703 + ... + 130369.

Almost surely, 2^215936512 is an apocalyptic number.

215936512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215936512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245716416).

215936512 is an abundant number, since it is smaller than the sum of its proper divisors (275496320).

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

215936512 is a wasteful number, since it uses less digits than its factorization.

215936512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1703 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 215936512 is about 14694.7783923406. The cubic root of 215936512 is about 599.9412090544.

The spelling of 215936512 in words is "two hundred fifteen million, nine hundred thirty-six thousand, five hundred twelve".