215651025120 has 96 divisors (see below), whose sum is σ = 679619499552. Its totient is φ = 57479954432.

The previous prime is 215651025053. The next prime is 215651025131. The reversal of 215651025120 is 21520156512.

215651025120 is digitally balanced in base 3, 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 (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 929104 + ... + 1137776.

It is an arithmetic number, because the mean of its divisors is an integer number (7079369787).

Almost surely, 2^215651025120 is an apocalyptic number.

215651025120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215651025120 is an abundant number, since it is smaller than the sum of its proper divisors (463968474432).

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

215651025120 is a wasteful number, since it uses less digits than its factorization.

215651025120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210844 (or 210836 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 215651025120 in words is "two hundred fifteen billion, six hundred fifty-one million, twenty-five thousand, one hundred twenty".