16695002689 has 2 divisors, whose sum is σ = 16695002690. Its totient is φ = 16695002688.

The previous prime is 16695002657. The next prime is 16695002761. The reversal of 16695002689 is 98620059661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16580940289 + 114062400 = 128767^2 + 10680^2 .

It is an emirp because it is prime and its reverse (98620059661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16695002689 - 2⁵ = 16695002657 is a prime.

It is a super-2 number, since 2×16695002689² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16695002629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8347501344 + 8347501345.

It is an arithmetic number, because the mean of its divisors is an integer number (8347501345).

Almost surely, 2^16695002689 is an apocalyptic number.

It is an amenable number.

16695002689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16695002689 is an equidigital number, since it uses as much as digits as its factorization.

16695002689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 16695002689 in words is "sixteen billion, six hundred ninety-five million, two thousand, six hundred eighty-nine".