16653859164 has 36 divisors (see below), whose sum is σ = 42174265224. Its totient is φ = 5541131232.

The previous prime is 16653859151. The next prime is 16653859169. The reversal of 16653859164 is 46195835661.

16653859164 is a `hidden beast` number, since 16 + 6 + 5 + 38 + 591 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16653859164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16653859169) 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, 403167 + ... + 442550.

Almost surely, 2^16653859164 is an apocalyptic number.

It is an amenable number.

16653859164 is an abundant number, since it is smaller than the sum of its proper divisors (25520406060).

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

16653859164 is a wasteful number, since it uses less digits than its factorization.

16653859164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846274 (or 846269 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The spelling of 16653859164 in words is "sixteen billion, six hundred fifty-three million, eight hundred fifty-nine thousand, one hundred sixty-four".