15255392161 has 2 divisors, whose sum is σ = 15255392162. Its totient is φ = 15255392160.

The previous prime is 15255392149. The next prime is 15255392167. The reversal of 15255392161 is 16129355251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8580502161 + 6674890000 = 92631^2 + 81700^2 .

It is a cyclic number.

It is not a de Polignac number, because 15255392161 - 2⁵ = 15255392129 is a prime.

It is not a weakly prime, because it can be changed into another prime (15255392167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7627696080 + 7627696081.

It is an arithmetic number, because the mean of its divisors is an integer number (7627696081).

Almost surely, 2^15255392161 is an apocalyptic number.

It is an amenable number.

15255392161 is a deficient number, since it is larger than the sum of its proper divisors (1).

15255392161 is an equidigital number, since it uses as much as digits as its factorization.

15255392161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 40.

The spelling of 15255392161 in words is "fifteen billion, two hundred fifty-five million, three hundred ninety-two thousand, one hundred sixty-one".