215190852120 has 64 divisors (see below), whose sum is σ = 717302844000. Its totient is φ = 57384226944.

The previous prime is 215190852077. The next prime is 215190852167. The reversal of 215190852120 is 21258091512.

215190852120 is a `hidden beast` number, since 21 + 5 + 1 + 90 + 8 + 521 + 20 = 666.

215190852120 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×215190852120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99624315 + ... + 99626474.

Almost surely, 2^215190852120 is an apocalyptic number.

215190852120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215190852120 is an abundant number, since it is smaller than the sum of its proper divisors (502111991880).

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

215190852120 is a wasteful number, since it uses less digits than its factorization.

215190852120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199250809 (or 199250799 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The spelling of 215190852120 in words is "two hundred fifteen billion, one hundred ninety million, eight hundred fifty-two thousand, one hundred twenty".