215536023432 has 48 divisors (see below), whose sum is σ = 583872607500. Its totient is φ = 71829438336.

The previous prime is 215536023431. The next prime is 215536023533. The reversal of 215536023432 is 234320635512.

215536023432 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 3 + 602 + 3 + 43 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 202332634596 + 13203388836 = 449814^2 + 114906^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (215536023431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1507 + ... + 656562.

Almost surely, 2^215536023432 is an apocalyptic number.

It is an amenable number.

215536023432 is an abundant number, since it is smaller than the sum of its proper divisors (368336584068).

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

215536023432 is a wasteful number, since it uses less digits than its factorization.

215536023432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662630 (or 662623 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 215536023432 its reverse (234320635512), we get a palindrome (449856658944).

The spelling of 215536023432 in words is "two hundred fifteen billion, five hundred thirty-six million, twenty-three thousand, four hundred thirty-two".