161086579201 has 2 divisors, whose sum is σ = 161086579202. Its totient is φ = 161086579200.

The previous prime is 161086579139. The next prime is 161086579211. The reversal of 161086579201 is 102975680161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107390567025 + 53696012176 = 327705^2 + 231724^2 .

It is a cyclic number.

It is not a de Polignac number, because 161086579201 - 2²¹ = 161084482049 is a prime.

It is not a weakly prime, because it can be changed into another prime (161086579211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80543289600 + 80543289601.

It is an arithmetic number, because the mean of its divisors is an integer number (80543289601).

Almost surely, 2^161086579201 is an apocalyptic number.

It is an amenable number.

161086579201 is a deficient number, since it is larger than the sum of its proper divisors (1).

161086579201 is an equidigital number, since it uses as much as digits as its factorization.

161086579201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 161086579201 in words is "one hundred sixty-one billion, eighty-six million, five hundred seventy-nine thousand, two hundred one".