16653464663 has 8 divisors (see below), whose sum is σ = 18957303936. Its totient is φ = 14481273400.

The previous prime is 16653464621. The next prime is 16653464671. The reversal of 16653464663 is 36646435661.

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

It is not a de Polignac number, because 16653464663 - 2¹⁸ = 16653202519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16653464063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32911733 + ... + 32912238.

It is an arithmetic number, because the mean of its divisors is an integer number (2369662992).

Almost surely, 2^16653464663 is an apocalyptic number.

16653464663 is a deficient number, since it is larger than the sum of its proper divisors (2303839273).

16653464663 is a wasteful number, since it uses less digits than its factorization.

16653464663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65824005.

The product of its digits is 5598720, while the sum is 50.

The spelling of 16653464663 in words is "sixteen billion, six hundred fifty-three million, four hundred sixty-four thousand, six hundred sixty-three".