15255461161 has 2 divisors, whose sum is σ = 15255461162. Its totient is φ = 15255461160.

The previous prime is 15255461149. The next prime is 15255461167. The reversal of 15255461161 is 16116455251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13134306025 + 2121155136 = 114605^2 + 46056^2 .

It is a cyclic number.

It is not a de Polignac number, because 15255461161 - 2⁵ = 15255461129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15255461161.

It is not a weakly prime, because it can be changed into another prime (15255461167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7627730580 + 7627730581.

It is an arithmetic number, because the mean of its divisors is an integer number (7627730581).

Almost surely, 2^15255461161 is an apocalyptic number.

It is an amenable number.

15255461161 is a deficient number, since it is larger than the sum of its proper divisors (1).

15255461161 is an equidigital number, since it uses as much as digits as its factorization.

15255461161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 37.

The spelling of 15255461161 in words is "fifteen billion, two hundred fifty-five million, four hundred sixty-one thousand, one hundred sixty-one".