216522396792 has 96 divisors (see below), whose sum is σ = 668672156880. Its totient is φ = 62703313920.

The previous prime is 216522396767. The next prime is 216522396793. The reversal of 216522396792 is 297693225612.

216522396792 is a `hidden beast` number, since 2 + 16 + 522 + 39 + 6 + 79 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216522396793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6787834 + ... + 6819657.

Almost surely, 2^216522396792 is an apocalyptic number.

It is an amenable number.

216522396792 is an abundant number, since it is smaller than the sum of its proper divisors (452149760088).

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

216522396792 is a wasteful number, since it uses less digits than its factorization.

216522396792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607533 (or 13607526 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 216522396792 in words is "two hundred sixteen billion, five hundred twenty-two million, three hundred ninety-six thousand, seven hundred ninety-two".