16765517317 has 8 divisors (see below), whose sum is σ = 17768633472. Its totient is φ = 15764280000.

The previous prime is 16765517303. The next prime is 16765517341. The reversal of 16765517317 is 71371556761.

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 16765517317 - 2²⁷ = 16631299589 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 (16765517347) 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, 451309 + ... + 487042.

It is an arithmetic number, because the mean of its divisors is an integer number (2221079184).

Almost surely, 2^16765517317 is an apocalyptic number.

16765517317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16765517317 is a deficient number, since it is larger than the sum of its proper divisors (1003116155).

16765517317 is a wasteful number, since it uses less digits than its factorization.

16765517317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939419.

The product of its digits is 926100, while the sum is 49.

The spelling of 16765517317 in words is "sixteen billion, seven hundred sixty-five million, five hundred seventeen thousand, three hundred seventeen".