215988207120 has 480 divisors, whose sum is σ = 857182470144. Its totient is φ = 47694873600.

The previous prime is 215988207109. The next prime is 215988207121. The reversal of 215988207120 is 21702889512.

215988207120 is a `hidden beast` number, since 21 + 598 + 8 + 20 + 7 + 12 + 0 = 666.

It is a super-2 number, since 2×215988207120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (215988207121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 175456905 + ... + 175458135.

Almost surely, 2^215988207120 is an apocalyptic number.

215988207120 is a gapful number since it is divisible by the number (20) 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 215988207120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428591235072).

215988207120 is an abundant number, since it is smaller than the sum of its proper divisors (641194263024).

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

215988207120 is a wasteful number, since it uses less digits than its factorization.

215988207120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2402 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 215988207120 in words is "two hundred fifteen billion, nine hundred eighty-eight million, two hundred seven thousand, one hundred twenty".