16692158449 has 2 divisors, whose sum is σ = 16692158450. Its totient is φ = 16692158448.

The previous prime is 16692158411. The next prime is 16692158489. The reversal of 16692158449 is 94485129661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11447502049 + 5244656400 = 106993^2 + 72420^2 .

It is a cyclic number.

It is not a de Polignac number, because 16692158449 - 2²³ = 16683769841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16692158449.

It is not a weakly prime, because it can be changed into another prime (16692158489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8346079224 + 8346079225.

It is an arithmetic number, because the mean of its divisors is an integer number (8346079225).

Almost surely, 2^16692158449 is an apocalyptic number.

It is an amenable number.

16692158449 is a deficient number, since it is larger than the sum of its proper divisors (1).

16692158449 is an equidigital number, since it uses as much as digits as its factorization.

16692158449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 55.

The spelling of 16692158449 in words is "sixteen billion, six hundred ninety-two million, one hundred fifty-eight thousand, four hundred forty-nine".