215433653232 has 240 divisors, whose sum is σ = 682910160000. Its totient is φ = 58189985280.

The previous prime is 215433653231. The next prime is 215433653257. The reversal of 215433653232 is 232356334512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215433653231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22294482 + ... + 22304142.

It is an arithmetic number, because the mean of its divisors is an integer number (2845459000).

Almost surely, 2^215433653232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215433653232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341455080000).

215433653232 is an abundant number, since it is smaller than the sum of its proper divisors (467476506768).

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

215433653232 is a wasteful number, since it uses less digits than its factorization.

215433653232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204 (or 10191 counting only the distinct ones).

The product of its digits is 388800, while the sum is 39.

Adding to 215433653232 its reverse (232356334512), we get a palindrome (447789987744).

The spelling of 215433653232 in words is "two hundred fifteen billion, four hundred thirty-three million, six hundred fifty-three thousand, two hundred thirty-two".