16245145513 has 2 divisors, whose sum is σ = 16245145514. Its totient is φ = 16245145512.

The previous prime is 16245145507. The next prime is 16245145523. The reversal of 16245145513 is 31554154261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10200394009 + 6044751504 = 100997^2 + 77748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16245145513 is a prime.

It is not a weakly prime, because it can be changed into another prime (16245145523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8122572756 + 8122572757.

It is an arithmetic number, because the mean of its divisors is an integer number (8122572757).

Almost surely, 2^16245145513 is an apocalyptic number.

It is an amenable number.

16245145513 is a deficient number, since it is larger than the sum of its proper divisors (1).

16245145513 is an equidigital number, since it uses as much as digits as its factorization.

16245145513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 37.

Adding to 16245145513 its reverse (31554154261), we get a palindrome (47799299774).

The spelling of 16245145513 in words is "sixteen billion, two hundred forty-five million, one hundred forty-five thousand, five hundred thirteen".