161091083118 has 32 divisors (see below), whose sum is σ = 373252144896. Its totient is φ = 45395529408.

The previous prime is 161091083117. The next prime is 161091083129. The reversal of 161091083118 is 811380190161.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161091083113) 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, 26267496 + ... + 26273627.

It is an arithmetic number, because the mean of its divisors is an integer number (11664129528).

Almost surely, 2^161091083118 is an apocalyptic number.

161091083118 is an abundant number, since it is smaller than the sum of its proper divisors (212161061778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161091083118 is a wasteful number, since it uses less digits than its factorization.

161091083118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52541208.

The product of its (nonzero) digits is 10368, while the sum is 39.

The spelling of 161091083118 in words is "one hundred sixty-one billion, ninety-one million, eighty-three thousand, one hundred eighteen".