16474172617 has 16 divisors (see below), whose sum is σ = 19283443200. Its totient is φ = 13780582848.

The previous prime is 16474172549. The next prime is 16474172639. The reversal of 16474172617 is 71627147461.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16474172617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16474172647) 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 15 ways as a sum of consecutive naturals, for example, 43083 + ... + 186559.

It is an arithmetic number, because the mean of its divisors is an integer number (1205215200).

Almost surely, 2^16474172617 is an apocalyptic number.

It is an amenable number.

16474172617 is a deficient number, since it is larger than the sum of its proper divisors (2809270583).

16474172617 is a wasteful number, since it uses less digits than its factorization.

16474172617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143880.

The product of its digits is 395136, while the sum is 46.

The spelling of 16474172617 in words is "sixteen billion, four hundred seventy-four million, one hundred seventy-two thousand, six hundred seventeen".