166060125961 has 2 divisors, whose sum is σ = 166060125962. Its totient is φ = 166060125960.

The previous prime is 166060125929. The next prime is 166060126003. The reversal of 166060125961 is 169521060661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164560035600 + 1500090361 = 405660^2 + 38731^2 .

It is an emirp because it is prime and its reverse (169521060661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166060125961 - 2⁵ = 166060125929 is a prime.

It is not a weakly prime, because it can be changed into another prime (166060125911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83030062980 + 83030062981.

It is an arithmetic number, because the mean of its divisors is an integer number (83030062981).

Almost surely, 2^166060125961 is an apocalyptic number.

It is an amenable number.

166060125961 is a deficient number, since it is larger than the sum of its proper divisors (1).

166060125961 is an equidigital number, since it uses as much as digits as its factorization.

166060125961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 166060125961 in words is "one hundred sixty-six billion, sixty million, one hundred twenty-five thousand, nine hundred sixty-one".