16315884289 has 2 divisors, whose sum is σ = 16315884290. Its totient is φ = 16315884288.

The previous prime is 16315884281. The next prime is 16315884323. The reversal of 16315884289 is 98248851361.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12836890000 + 3478994289 = 113300^2 + 58983^2 .

It is a cyclic number.

It is not a de Polignac number, because 16315884289 - 2³ = 16315884281 is a prime.

It is not a weakly prime, because it can be changed into another prime (16315884281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157942144 + 8157942145.

It is an arithmetic number, because the mean of its divisors is an integer number (8157942145).

Almost surely, 2^16315884289 is an apocalyptic number.

It is an amenable number.

16315884289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16315884289 is an equidigital number, since it uses as much as digits as its factorization.

16315884289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 55.

The spelling of 16315884289 in words is "sixteen billion, three hundred fifteen million, eight hundred eighty-four thousand, two hundred eighty-nine".