16687767417 has 16 divisors (see below), whose sum is σ = 22988579712. Its totient is φ = 10759668480.

The previous prime is 16687767391. The next prime is 16687767419. The reversal of 16687767417 is 71476778661.

It is a happy number.

It is not a de Polignac number, because 16687767417 - 2⁶ = 16687767353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16687767419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431584 + ... + 468657.

It is an arithmetic number, because the mean of its divisors is an integer number (1436786232).

Almost surely, 2^16687767417 is an apocalyptic number.

It is an amenable number.

16687767417 is a deficient number, since it is larger than the sum of its proper divisors (6300812295).

16687767417 is a wasteful number, since it uses less digits than its factorization.

16687767417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900448.

The product of its digits is 16595712, while the sum is 60.

The spelling of 16687767417 in words is "sixteen billion, six hundred eighty-seven million, seven hundred sixty-seven thousand, four hundred seventeen".