16564645233153 has 12 divisors (see below), whose sum is σ = 24332247235920. Its totient is φ = 10855925689176.

The previous prime is 16564645233151. The next prime is 16564645233163. The reversal of 16564645233153 is 35133254646561.

16564645233153 is a `hidden beast` number, since 1 + 6 + 5 + 6 + 4 + 6 + 452 + 33 + 153 = 666.

It is not a de Polignac number, because 16564645233153 - 2¹ = 16564645233151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16564645233153.

It is not an unprimeable number, because it can be changed into a prime (16564645233151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15597593851 + ... + 15597594912.

It is an arithmetic number, because the mean of its divisors is an integer number (2027687269660).

Almost surely, 2^{16564645233153} is an apocalyptic number.

It is an amenable number.

16564645233153 is a deficient number, since it is larger than the sum of its proper divisors (7767602002767).

16564645233153 is a wasteful number, since it uses less digits than its factorization.

16564645233153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31195188828 (or 31195188825 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 54.

The spelling of 16564645233153 in words is "sixteen trillion, five hundred sixty-four billion, six hundred forty-five million, two hundred thirty-three thousand, one hundred fifty-three".