16611610172 has 12 divisors (see below), whose sum is σ = 29216401200. Its totient is φ = 8264066976.

The previous prime is 16611610159. The next prime is 16611610199. The reversal of 16611610172 is 27101611661.

16611610172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10433633 + ... + 10435224.

It is an arithmetic number, because the mean of its divisors is an integer number (2434700100).

Almost surely, 2^16611610172 is an apocalyptic number.

It is an amenable number.

16611610172 is a deficient number, since it is larger than the sum of its proper divisors (12604791028).

16611610172 is a wasteful number, since it uses less digits than its factorization.

16611610172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20869060 (or 20869058 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 16611610172 in words is "sixteen billion, six hundred eleven million, six hundred ten thousand, one hundred seventy-two".