161760791011 has 2 divisors, whose sum is σ = 161760791012. Its totient is φ = 161760791010.

The previous prime is 161760790973. The next prime is 161760791021. The reversal of 161760791011 is 110197067161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161760791011 - 2³⁵ = 127401052643 is a prime.

It is not a weakly prime, because it can be changed into another prime (161760791021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80880395505 + 80880395506.

It is an arithmetic number, because the mean of its divisors is an integer number (80880395506).

Almost surely, 2^161760791011 is an apocalyptic number.

161760791011 is a deficient number, since it is larger than the sum of its proper divisors (1).

161760791011 is an equidigital number, since it uses as much as digits as its factorization.

161760791011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 40.

The spelling of 161760791011 in words is "one hundred sixty-one billion, seven hundred sixty million, seven hundred ninety-one thousand, eleven".