215695328375 has 32 divisors (see below), whose sum is σ = 271802678784. Its totient is φ = 170888140800.

The previous prime is 215695328339. The next prime is 215695328377. The reversal of 215695328375 is 573823596512.

It is not a de Polignac number, because 215695328375 - 2¹⁸ = 215695066231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215695328375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215695328377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5359829 + ... + 5399921.

It is an arithmetic number, because the mean of its divisors is an integer number (8493833712).

Almost surely, 2^215695328375 is an apocalyptic number.

215695328375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

215695328375 is a deficient number, since it is larger than the sum of its proper divisors (56107350409).

215695328375 is a wasteful number, since it uses less digits than its factorization.

215695328375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40524 (or 40514 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 56.

The spelling of 215695328375 in words is "two hundred fifteen billion, six hundred ninety-five million, three hundred twenty-eight thousand, three hundred seventy-five".