16653075663 has 64 divisors (see below), whose sum is σ = 26291865600. Its totient is φ = 9371045376.

The previous prime is 16653075653. The next prime is 16653075707. The reversal of 16653075663 is 36657035661.

It is a happy number.

It is not a de Polignac number, because 16653075663 - 2⁶ = 16653075599 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16653075643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22906206 + ... + 22906932.

It is an arithmetic number, because the mean of its divisors is an integer number (410810400).

Almost surely, 2^16653075663 is an apocalyptic number.

16653075663 is a deficient number, since it is larger than the sum of its proper divisors (9638789937).

16653075663 is a wasteful number, since it uses less digits than its factorization.

16653075663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 48.

The spelling of 16653075663 in words is "sixteen billion, six hundred fifty-three million, seventy-five thousand, six hundred sixty-three".