652216158891 has 32 divisors (see below), whose sum is σ = 1056251404800. Its totient is φ = 394470764640.

The previous prime is 652216158859. The next prime is 652216158917. The reversal of 652216158891 is 198851612256.

652216158891 is a `hidden beast` number, since 6 + 52 + 2 + 1 + 6 + 1 + 588 + 9 + 1 = 666.

It is not a de Polignac number, because 652216158891 - 2⁵ = 652216158859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (652216148891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2109996 + ... + 2399273.

It is an arithmetic number, because the mean of its divisors is an integer number (33007856400).

Almost surely, 2^652216158891 is an apocalyptic number.

652216158891 is a deficient number, since it is larger than the sum of its proper divisors (404035245909).

652216158891 is a wasteful number, since it uses less digits than its factorization.

652216158891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509776 (or 4509770 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The spelling of 652216158891 in words is "six hundred fifty-two billion, two hundred sixteen million, one hundred fifty-eight thousand, eight hundred ninety-one".