47216640356568 has 24 divisors (see below), whose sum is σ = 127878400965900. Its totient is φ = 15738880118832.

The previous prime is 47216640356551. The next prime is 47216640356569. The reversal of 47216640356568 is 86565304661274.

47216640356568 is a `hidden beast` number, since 4 + 7 + 2 + 1 + 6 + 6 + 4 + 0 + 3 + 565 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×47216640356568² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47216640356569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327893335738 + ... + 327893335881.

Almost surely, 2^{47216640356568} is an apocalyptic number.

It is an amenable number.

47216640356568 is an abundant number, since it is smaller than the sum of its proper divisors (80661760609332).

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

47216640356568 is a wasteful number, since it uses less digits than its factorization.

47216640356568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655786671631 (or 655786671624 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 63.

The spelling of 47216640356568 in words is "forty-seven trillion, two hundred sixteen billion, six hundred forty million, three hundred fifty-six thousand, five hundred sixty-eight".