16345916769 has 48 divisors (see below), whose sum is σ = 27374410752. Its totient is φ = 8493211584.

The previous prime is 16345916753. The next prime is 16345916819. The reversal of 16345916769 is 96761954361.

It is not a de Polignac number, because 16345916769 - 2⁴ = 16345916753 is a prime.

It is a super-2 number, since 2×16345916769² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16345916269) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203412 + ... + 272154.

It is an arithmetic number, because the mean of its divisors is an integer number (570300224).

Almost surely, 2^16345916769 is an apocalyptic number.

It is an amenable number.

16345916769 is a deficient number, since it is larger than the sum of its proper divisors (11028493983).

16345916769 is a wasteful number, since it uses less digits than its factorization.

16345916769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68846 (or 68833 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 57.

The spelling of 16345916769 in words is "sixteen billion, three hundred forty-five million, nine hundred sixteen thousand, seven hundred sixty-nine".