215364413320 has 128 divisors (see below), whose sum is σ = 585080755200. Its totient is φ = 69776050176.

The previous prime is 215364413279. The next prime is 215364413399. The reversal of 215364413320 is 23314463512.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99484 + ... + 663796.

It is an arithmetic number, because the mean of its divisors is an integer number (4570943400).

Almost surely, 2^215364413320 is an apocalyptic number.

215364413320 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 215364413320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292540377600).

215364413320 is an abundant number, since it is smaller than the sum of its proper divisors (369716341880).

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

215364413320 is a wasteful number, since it uses less digits than its factorization.

215364413320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564407 (or 564403 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 215364413320 its reverse (23314463512), we get a palindrome (238678876832).

The spelling of 215364413320 in words is "two hundred fifteen billion, three hundred sixty-four million, four hundred thirteen thousand, three hundred twenty".