215327983416 has 128 divisors (see below), whose sum is σ = 669992601600. Its totient is φ = 56151659520.

The previous prime is 215327983397. The next prime is 215327983441. The reversal of 215327983416 is 614389723512.

It is a super-2 number, since 2×215327983416² (a number of 23 digits) contains 22 as substring.

It is a congruent 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, 359520 + ... + 748271.

It is an arithmetic number, because the mean of its divisors is an integer number (5234317200).

Almost surely, 2^215327983416 is an apocalyptic number.

215327983416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

215327983416 is an abundant number, since it is smaller than the sum of its proper divisors (454664618184).

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

215327983416 is a wasteful number, since it uses less digits than its factorization.

215327983416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107909 (or 1107905 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The spelling of 215327983416 in words is "two hundred fifteen billion, three hundred twenty-seven million, nine hundred eighty-three thousand, four hundred sixteen".