15615200023 has 2 divisors, whose sum is σ = 15615200024. Its totient is φ = 15615200022.

The previous prime is 15615199991. The next prime is 15615200039. The reversal of 15615200023 is 32000251651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15615200023 - 2⁵ = 15615199991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15615200063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7807600011 + 7807600012.

It is an arithmetic number, because the mean of its divisors is an integer number (7807600012).

Almost surely, 2^15615200023 is an apocalyptic number.

15615200023 is a deficient number, since it is larger than the sum of its proper divisors (1).

15615200023 is an equidigital number, since it uses as much as digits as its factorization.

15615200023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 15615200023 its reverse (32000251651), we get a palindrome (47615451674).

The spelling of 15615200023 in words is "fifteen billion, six hundred fifteen million, two hundred thousand, twenty-three".