215196052988520 has 640 divisors, whose sum is σ = 748612084746240. Its totient is φ = 55387263559680.

The previous prime is 215196052988467. The next prime is 215196052988569. The reversal of 215196052988520 is 25889250691512.

215196052988520 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 9 + 6 + 0 + 5 + 29 + 88 + 520 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 104820287814 + ... + 104820289866.

It is an arithmetic number, because the mean of its divisors is an integer number (1169706382416).

Almost surely, 2^{215196052988520} is an apocalyptic number.

215196052988520 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 215196052988520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374306042373120).

215196052988520 is an abundant number, since it is smaller than the sum of its proper divisors (533416031757720).

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

215196052988520 is a wasteful number, since it uses less digits than its factorization.

215196052988520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4367 (or 4354 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 63.

The spelling of 215196052988520 in words is "two hundred fifteen trillion, one hundred ninety-six billion, fifty-two million, nine hundred eighty-eight thousand, five hundred twenty".