215411315200 has 60 divisors (see below), whose sum is σ = 533698394130. Its totient is φ = 86164520960.

The previous prime is 215411315183. The next prime is 215411315209. The reversal of 215411315200 is 2513114512.

It can be written as a sum of positive squares in 3 ways, for example, as 125248041216 + 90163273984 = 353904^2 + 300272^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (215411315209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8401705 + ... + 8427304.

Almost surely, 2^215411315200 is an apocalyptic number.

215411315200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215411315200 is an abundant number, since it is smaller than the sum of its proper divisors (318287078930).

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

215411315200 is an equidigital number, since it uses as much as digits as its factorization.

215411315200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16829037 (or 16829016 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 215411315200 its reverse (2513114512), we get a palindrome (217924429712).

The spelling of 215411315200 in words is "two hundred fifteen billion, four hundred eleven million, three hundred fifteen thousand, two hundred".