215441152520 has 32 divisors (see below), whose sum is σ = 528810102720. Its totient is φ = 78342237120.

The previous prime is 215441152483. The next prime is 215441152547. The reversal of 215441152520 is 25251144512.

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, 244819052 + ... + 244819931.

It is an arithmetic number, because the mean of its divisors is an integer number (16525315710).

Almost surely, 2^215441152520 is an apocalyptic number.

215441152520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215441152520 is an abundant number, since it is smaller than the sum of its proper divisors (313368950200).

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

215441152520 is a wasteful number, since it uses less digits than its factorization.

215441152520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489639005 (or 489639001 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 215441152520 in words is "two hundred fifteen billion, four hundred forty-one million, one hundred fifty-two thousand, five hundred twenty".