16161032513 has 2 divisors, whose sum is σ = 16161032514. Its totient is φ = 16161032512.

The previous prime is 16161032479. The next prime is 16161032599. The reversal of 16161032513 is 31523016161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8978131009 + 7182901504 = 94753^2 + 84752^2 .

It is a cyclic number.

It is not a de Polignac number, because 16161032513 - 2²⁰ = 16159983937 is a prime.

It is a super-2 number, since 2×16161032513² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16161032113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8080516256 + 8080516257.

It is an arithmetic number, because the mean of its divisors is an integer number (8080516257).

Almost surely, 2^16161032513 is an apocalyptic number.

It is an amenable number.

16161032513 is a deficient number, since it is larger than the sum of its proper divisors (1).

16161032513 is an equidigital number, since it uses as much as digits as its factorization.

16161032513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 16161032513 its reverse (31523016161), we get a palindrome (47684048674).

The spelling of 16161032513 in words is "sixteen billion, one hundred sixty-one million, thirty-two thousand, five hundred thirteen".