216574930518696 has 48 divisors (see below), whose sum is σ = 586563176040660. Its totient is φ = 72190896115200.

The previous prime is 216574930518673. The next prime is 216574930518707. The reversal of 216574930518696 is 696815039475612.

It is a happy number.

216574930518696 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 7 + 49 + 3 + 0 + 518 + 69 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 179452548080100 + 37122382438596 = 13395990^2 + 6092814^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8545905 + ... + 22498496.

It is a 1-persistent number, because it is pandigital, but 2⋅216574930518696 = 433149861037392 is not.

Almost surely, 2^{216574930518696} is an apocalyptic number.

It is an amenable number.

216574930518696 is an abundant number, since it is smaller than the sum of its proper divisors (369988245521964).

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

216574930518696 is a wasteful number, since it uses less digits than its factorization.

216574930518696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31141306 (or 31141299 counting only the distinct ones).

The product of its (nonzero) digits is 587865600, while the sum is 72.

The spelling of 216574930518696 in words is "two hundred sixteen trillion, five hundred seventy-four billion, nine hundred thirty million, five hundred eighteen thousand, six hundred ninety-six".