16453101621564 has 48 divisors (see below), whose sum is σ = 42680113719040. Its totient is φ = 5481291222000.

The previous prime is 16453101621547. The next prime is 16453101621589. The reversal of 16453101621564 is 46512610135461.

16453101621564 is a `hidden beast` number, since 1 + 6 + 4 + 5 + 3 + 10 + 1 + 621 + 5 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42528562 + ... + 42913689.

Almost surely, 2^{16453101621564} is an apocalyptic number.

It is an amenable number.

16453101621564 is an abundant number, since it is smaller than the sum of its proper divisors (26227012097476).

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

16453101621564 is a wasteful number, since it uses less digits than its factorization.

16453101621564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85444047 (or 85444039 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 16453101621564 in words is "sixteen trillion, four hundred fifty-three billion, one hundred one million, six hundred twenty-one thousand, five hundred sixty-four".