16453660500 has 72 divisors (see below), whose sum is σ = 51905828520. Its totient is φ = 4387641600.

The previous prime is 16453660493. The next prime is 16453660519. The reversal of 16453660500 is 506635461.

16453660500 is a `hidden beast` number, since 1 + 6 + 45 + 3 + 6 + 605 + 0 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 453434436 + 16000226064 = 21294^2 + 126492^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1823685 + ... + 1832684.

It is an arithmetic number, because the mean of its divisors is an integer number (720914285).

Almost surely, 2^16453660500 is an apocalyptic number.

16453660500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16453660500 is an abundant number, since it is smaller than the sum of its proper divisors (35452168020).

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

16453660500 is a wasteful number, since it uses less digits than its factorization.

16453660500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656394 (or 3656379 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 16453660500 in words is "sixteen billion, four hundred fifty-three million, six hundred sixty thousand, five hundred".