161732211883 has 4 divisors (see below), whose sum is σ = 176435140248. Its totient is φ = 147029283520.

The previous prime is 161732211871. The next prime is 161732211899. The reversal of 161732211883 is 388112237161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 388112237161 = 11 ⋅35282930651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161732211883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161732211853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7351464166 + ... + 7351464187.

It is an arithmetic number, because the mean of its divisors is an integer number (44108785062).

Almost surely, 2^161732211883 is an apocalyptic number.

161732211883 is a deficient number, since it is larger than the sum of its proper divisors (14702928365).

161732211883 is a wasteful number, since it uses less digits than its factorization.

161732211883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14702928364.

The product of its digits is 96768, while the sum is 43.

The spelling of 161732211883 in words is "one hundred sixty-one billion, seven hundred thirty-two million, two hundred eleven thousand, eight hundred eighty-three".