15814725161 has 2 divisors, whose sum is σ = 15814725162. Its totient is φ = 15814725160.

The previous prime is 15814725077. The next prime is 15814725169. The reversal of 15814725161 is 16152741851.

15814725161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10226265625 + 5588459536 = 101125^2 + 74756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15814725161 is a prime.

It is not a weakly prime, because it can be changed into another prime (15814725169) 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, 7907362580 + 7907362581.

It is an arithmetic number, because the mean of its divisors is an integer number (7907362581).

Almost surely, 2^15814725161 is an apocalyptic number.

It is an amenable number.

15814725161 is a deficient number, since it is larger than the sum of its proper divisors (1).

15814725161 is an equidigital number, since it uses as much as digits as its factorization.

15814725161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 41.

The spelling of 15814725161 in words is "fifteen billion, eight hundred fourteen million, seven hundred twenty-five thousand, one hundred sixty-one".