161249710759 has 2 divisors, whose sum is σ = 161249710760. Its totient is φ = 161249710758.

The previous prime is 161249710709. The next prime is 161249710781. The reversal of 161249710759 is 957017942161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161249710759 - 2⁷ = 161249710631 is a prime.

It is a super-2 number, since 2×161249710759² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161249710709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80624855379 + 80624855380.

It is an arithmetic number, because the mean of its divisors is an integer number (80624855380).

Almost surely, 2^161249710759 is an apocalyptic number.

161249710759 is a deficient number, since it is larger than the sum of its proper divisors (1).

161249710759 is an equidigital number, since it uses as much as digits as its factorization.

161249710759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 161249710759 in words is "one hundred sixty-one billion, two hundred forty-nine million, seven hundred ten thousand, seven hundred fifty-nine".