16655793391 has 8 divisors (see below), whose sum is σ = 16786638000. Its totient is φ = 16525005120.

The previous prime is 16655793359. The next prime is 16655793403. The reversal of 16655793391 is 19339755661.

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 16655793391 - 2⁵ = 16655793359 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 (16655793191) 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, 734085 + ... + 756433.

It is an arithmetic number, because the mean of its divisors is an integer number (2098329750).

Almost surely, 2^16655793391 is an apocalyptic number.

16655793391 is a deficient number, since it is larger than the sum of its proper divisors (130844609).

16655793391 is a wasteful number, since it uses less digits than its factorization.

16655793391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28169.

The product of its digits is 4592700, while the sum is 55.

The spelling of 16655793391 in words is "sixteen billion, six hundred fifty-five million, seven hundred ninety-three thousand, three hundred ninety-one".