215195181451200 has 588 divisors, whose sum is σ = 807365125581480. Its totient is φ = 56412730091520.

The previous prime is 215195181451199. The next prime is 215195181451267. The reversal of 215195181451200 is 2154181591512.

215195181451200 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 9 + 51 + 81 + 4 + 512 + 0 + 0 = 666.

It is a super-2 number, since 2×215195181451200² (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 an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 67254082 + ... + 70381118.

Almost surely, 2^{215195181451200} is an apocalyptic number.

215195181451200 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 215195181451200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403682562790740).

215195181451200 is an abundant number, since it is smaller than the sum of its proper divisors (592169944130280).

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

215195181451200 is an equidigital number, since it uses as much as digits as its factorization.

215195181451200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127136 (or 3127106 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 45.

The spelling of 215195181451200 in words is "two hundred fifteen trillion, one hundred ninety-five billion, one hundred eighty-one million, four hundred fifty-one thousand, two hundred".