15061166161 has 2 divisors, whose sum is σ = 15061166162. Its totient is φ = 15061166160.

The previous prime is 15061166149. The next prime is 15061166179. The reversal of 15061166161 is 16166116051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11334796225 + 3726369936 = 106465^2 + 61044^2 .

It is a cyclic number.

It is not a de Polignac number, because 15061166161 - 2¹⁷ = 15061035089 is a prime.

It is a super-2 number, since 2×15061166161² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15061166261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7530583080 + 7530583081.

It is an arithmetic number, because the mean of its divisors is an integer number (7530583081).

Almost surely, 2^15061166161 is an apocalyptic number.

It is an amenable number.

15061166161 is a deficient number, since it is larger than the sum of its proper divisors (1).

15061166161 is an equidigital number, since it uses as much as digits as its factorization.

15061166161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 15061166161 in words is "fifteen billion, sixty-one million, one hundred sixty-six thousand, one hundred sixty-one".