16502240051897 has 2 divisors, whose sum is σ = 16502240051898. Its totient is φ = 16502240051896.

The previous prime is 16502240051873. The next prime is 16502240052097. The reversal of 16502240051897 is 79815004220561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16502151296656 + 88755241 = 4062284^2 + 9421^2 .

It is a cyclic number.

It is not a de Polignac number, because 16502240051897 - 2²⁶ = 16502172943033 is a prime.

It is not a weakly prime, because it can be changed into another prime (16502240051827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8251120025948 + 8251120025949.

It is an arithmetic number, because the mean of its divisors is an integer number (8251120025949).

Almost surely, 2^{16502240051897} is an apocalyptic number.

It is an amenable number.

16502240051897 is a deficient number, since it is larger than the sum of its proper divisors (1).

16502240051897 is an equidigital number, since it uses as much as digits as its factorization.

16502240051897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 16502240051897 in words is "sixteen trillion, five hundred two billion, two hundred forty million, fifty-one thousand, eight hundred ninety-seven".