16653319793 has 8 divisors (see below), whose sum is σ = 18510037056. Its totient is φ = 14853732400.

The previous prime is 16653319789. The next prime is 16653319807. The reversal of 16653319793 is 39791335661.

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

It is a cyclic number.

It is not a de Polignac number, because 16653319793 - 2² = 16653319789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16653319093) 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, 14281853 + ... + 14283018.

It is an arithmetic number, because the mean of its divisors is an integer number (2313754632).

Almost surely, 2^16653319793 is an apocalyptic number.

It is an amenable number.

16653319793 is a deficient number, since it is larger than the sum of its proper divisors (1856717263).

16653319793 is a wasteful number, since it uses less digits than its factorization.

16653319793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28564935.

The product of its digits is 2755620, while the sum is 53.

The spelling of 16653319793 in words is "sixteen billion, six hundred fifty-three million, three hundred nineteen thousand, seven hundred ninety-three".