215902043412480 has 2688 divisors, whose sum is σ = 835298231040000. Its totient is φ = 53415192821760.

The previous prime is 215902043412467. The next prime is 215902043412487. The reversal of 215902043412480 is 84214340209512.

215902043412480 is a `hidden beast` number, since 2 + 1 + 5 + 9 + 0 + 204 + 341 + 24 + 80 = 666.

It is a super-2 number, since 2×215902043412480² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215902043412487) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 1084934891421 + ... + 1084934891619.

It is an arithmetic number, because the mean of its divisors is an integer number (310750830000).

Almost surely, 2^{215902043412480} is an apocalyptic number.

215902043412480 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 215902043412480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417649115520000).

215902043412480 is an abundant number, since it is smaller than the sum of its proper divisors (619396187627520).

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

215902043412480 is an equidigital number, since it uses as much as digits as its factorization.

215902043412480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 215902043412480 in words is "two hundred fifteen trillion, nine hundred two billion, forty-three million, four hundred twelve thousand, four hundred eighty".