16655056613 has 32 divisors (see below), whose sum is σ = 20007993600. Its totient is φ = 13719283200.

The previous prime is 16655056609. The next prime is 16655056669. The reversal of 16655056613 is 31665055661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16655056613 - 2² = 16655056609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16655016613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265328 + ... + 322038.

It is an arithmetic number, because the mean of its divisors is an integer number (625249800).

Almost surely, 2^16655056613 is an apocalyptic number.

16655056613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16655056613 is a deficient number, since it is larger than the sum of its proper divisors (3352936987).

16655056613 is a wasteful number, since it uses less digits than its factorization.

16655056613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56813.

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 16655056613 in words is "sixteen billion, six hundred fifty-five million, fifty-six thousand, six hundred thirteen".