16573698913 has 2 divisors, whose sum is σ = 16573698914. Its totient is φ = 16573698912.

The previous prime is 16573698901. The next prime is 16573698931. The reversal of 16573698913 is 31989637561.

It is a happy number.

Together with next prime (16573698931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9000696384 + 7573002529 = 94872^2 + 87023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16573698913 is a prime.

It is not a weakly prime, because it can be changed into another prime (16573698943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8286849456 + 8286849457.

It is an arithmetic number, because the mean of its divisors is an integer number (8286849457).

Almost surely, 2^16573698913 is an apocalyptic number.

It is an amenable number.

16573698913 is a deficient number, since it is larger than the sum of its proper divisors (1).

16573698913 is an equidigital number, since it uses as much as digits as its factorization.

16573698913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 58.

The spelling of 16573698913 in words is "sixteen billion, five hundred seventy-three million, six hundred ninety-eight thousand, nine hundred thirteen".