16696064669 has 2 divisors, whose sum is σ = 16696064670. Its totient is φ = 16696064668.

The previous prime is 16696064663. The next prime is 16696064681. The reversal of 16696064669 is 96646069661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16670683225 + 25381444 = 129115^2 + 5038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16696064669 is a prime.

It is a super-2 number, since 2×16696064669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16696064663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8348032334 + 8348032335.

It is an arithmetic number, because the mean of its divisors is an integer number (8348032335).

Almost surely, 2^16696064669 is an apocalyptic number.

It is an amenable number.

16696064669 is a deficient number, since it is larger than the sum of its proper divisors (1).

16696064669 is an equidigital number, since it uses as much as digits as its factorization.

16696064669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15116544, while the sum is 59.

The spelling of 16696064669 in words is "sixteen billion, six hundred ninety-six million, sixty-four thousand, six hundred sixty-nine".