16653032645 has 8 divisors (see below), whose sum is σ = 20672730360. Its totient is φ = 12863032000.

The previous prime is 16653032629. The next prime is 16653032659. The reversal of 16653032645 is 54623035661.

It can be written as a sum of positive squares in 4 ways, for example, as 813048196 + 15839984449 = 28514^2 + 125857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16653032645 - 2⁴ = 16653032629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57424106 + ... + 57424395.

It is an arithmetic number, because the mean of its divisors is an integer number (2584091295).

Almost surely, 2^16653032645 is an apocalyptic number.

It is an amenable number.

16653032645 is a deficient number, since it is larger than the sum of its proper divisors (4019697715).

16653032645 is a wasteful number, since it uses less digits than its factorization.

16653032645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114848535.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 16653032645 in words is "sixteen billion, six hundred fifty-three million, thirty-two thousand, six hundred forty-five".