161140914377 has 2 divisors, whose sum is σ = 161140914378. Its totient is φ = 161140914376.

The previous prime is 161140914359. The next prime is 161140914397. The reversal of 161140914377 is 773419041161.

161140914377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153175173376 + 7965741001 = 391376^2 + 89251^2 .

It is a cyclic number.

It is not a de Polignac number, because 161140914377 - 2³⁰ = 160067172553 is a prime.

It is not a weakly prime, because it can be changed into another prime (161140914397) 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, 80570457188 + 80570457189.

It is an arithmetic number, because the mean of its divisors is an integer number (80570457189).

Almost surely, 2^161140914377 is an apocalyptic number.

It is an amenable number.

161140914377 is a deficient number, since it is larger than the sum of its proper divisors (1).

161140914377 is an equidigital number, since it uses as much as digits as its factorization.

161140914377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 161140914377 in words is "one hundred sixty-one billion, one hundred forty million, nine hundred fourteen thousand, three hundred seventy-seven".