161935105759 has 16 divisors (see below), whose sum is σ = 193889990656. Its totient is φ = 132319202400.

The previous prime is 161935105747. The next prime is 161935105777. The reversal of 161935105759 is 957501539161.

It is not a de Polignac number, because 161935105759 - 2⁹ = 161935105247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161935100759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5554452 + ... + 5583529.

It is an arithmetic number, because the mean of its divisors is an integer number (12118124416).

Almost surely, 2^161935105759 is an apocalyptic number.

161935105759 is a deficient number, since it is larger than the sum of its proper divisors (31954884897).

161935105759 is a wasteful number, since it uses less digits than its factorization.

161935105759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11138086.

The product of its (nonzero) digits is 1275750, while the sum is 52.

The spelling of 161935105759 in words is "one hundred sixty-one billion, nine hundred thirty-five million, one hundred five thousand, seven hundred fifty-nine".