215571132000 has 1344 divisors, whose sum is σ = 928109145600. Its totient is φ = 48167654400.

The previous prime is 215571131989. The next prime is 215571132001. The reversal of 215571132000 is 231175512.

It is a super-2 number, since 2×215571132000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215571132001) 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, 1204307911 + ... + 1204308089.

It is an arithmetic number, because the mean of its divisors is an integer number (690557400).

Almost surely, 2^215571132000 is an apocalyptic number.

215571132000 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 215571132000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464054572800).

215571132000 is an abundant number, since it is smaller than the sum of its proper divisors (712538013600).

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

215571132000 is an equidigital number, since it uses as much as digits as its factorization.

215571132000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The spelling of 215571132000 in words is "two hundred fifteen billion, five hundred seventy-one million, one hundred thirty-two thousand".