215544004160 has 56 divisors (see below), whose sum is σ = 513377785536. Its totient is φ = 86198515200.

The previous prime is 215544004157. The next prime is 215544004229. The reversal of 215544004160 is 61400445512.

215544004160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1419935 + ... + 1564385.

It is an arithmetic number, because the mean of its divisors is an integer number (9167460456).

Almost surely, 2^215544004160 is an apocalyptic number.

215544004160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215544004160 is an abundant number, since it is smaller than the sum of its proper divisors (297833781376).

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

215544004160 is a wasteful number, since it uses less digits than its factorization.

215544004160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149131 (or 149121 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 215544004160 its reverse (61400445512), we get a palindrome (276944449672).

The spelling of 215544004160 in words is "two hundred fifteen billion, five hundred forty-four million, four thousand, one hundred sixty".