215056691200 has 702 divisors, whose sum is σ = 627683570844. Its totient is φ = 72996618240.

The previous prime is 215056691173. The next prime is 215056691221. The reversal of 215056691200 is 2196650512.

It is a self number, because there is not a number n which added to its sum of digits gives 215056691200.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 5001318379 + ... + 5001318421.

Almost surely, 2^215056691200 is an apocalyptic number.

215056691200 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 215056691200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313841785422).

215056691200 is an abundant number, since it is smaller than the sum of its proper divisors (412626879644).

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

215056691200 is a wasteful number, since it uses less digits than its factorization.

215056691200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 215056691200 in words is "two hundred fifteen billion, fifty-six million, six hundred ninety-one thousand, two hundred".