16895668969 has 4 divisors (see below), whose sum is σ = 17630263296. Its totient is φ = 16161074644.

The previous prime is 16895668961. The next prime is 16895668981. The reversal of 16895668969 is 96986659861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16895668969 - 2³ = 16895668961 is a prime.

It is a super-2 number, since 2×16895668969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16895668961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367297129 + ... + 367297174.

It is an arithmetic number, because the mean of its divisors is an integer number (4407565824).

Almost surely, 2^16895668969 is an apocalyptic number.

It is an amenable number.

16895668969 is a deficient number, since it is larger than the sum of its proper divisors (734594327).

16895668969 is an equidigital number, since it uses as much as digits as its factorization.

16895668969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734594326.

The product of its digits is 302330880, while the sum is 73.

The spelling of 16895668969 in words is "sixteen billion, eight hundred ninety-five million, six hundred sixty-eight thousand, nine hundred sixty-nine".