215522200032423 has 32 divisors (see below), whose sum is σ = 302889752336640. Its totient is φ = 135938238958080.

The previous prime is 215522200032319. The next prime is 215522200032457. The reversal of 215522200032423 is 324230002225512.

It is a happy number.

It is not a de Polignac number, because 215522200032423 - 2²⁴ = 215522183255207 is a prime.

It is a super-3 number, since 3×215522200032423³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215522200032523) 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, 264384768 + ... + 265198698.

It is an arithmetic number, because the mean of its divisors is an integer number (9465304760520).

Almost surely, 2^{215522200032423} is an apocalyptic number.

215522200032423 is a deficient number, since it is larger than the sum of its proper divisors (87367552304217).

215522200032423 is a wasteful number, since it uses less digits than its factorization.

215522200032423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820127.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 215522200032423 its reverse (324230002225512), we get a palindrome (539752202257935).

The spelling of 215522200032423 in words is "two hundred fifteen trillion, five hundred twenty-two billion, two hundred million, thirty-two thousand, four hundred twenty-three".