1260166014161 has 2 divisors, whose sum is σ = 1260166014162. Its totient is φ = 1260166014160.

The previous prime is 1260166014139. The next prime is 1260166014167. The reversal of 1260166014161 is 1614106610621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1025042853136 + 235123161025 = 1012444^2 + 484895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1260166014161 - 2⁶ = 1260166014097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1260166014167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630083007080 + 630083007081.

It is an arithmetic number, because the mean of its divisors is an integer number (630083007081).

Almost surely, 2^{1260166014161} is an apocalyptic number.

It is an amenable number.

1260166014161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260166014161 is an equidigital number, since it uses as much as digits as its factorization.

1260166014161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 1260166014161 in words is "one trillion, two hundred sixty billion, one hundred sixty-six million, fourteen thousand, one hundred sixty-one".