161116884 has 48 divisors (see below), whose sum is σ = 439700800. Its totient is φ = 50878368.

The previous prime is 161116883. The next prime is 161116927. The reversal of 161116884 is 488611161.

161116884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161116883) 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, 37207 + ... + 41310.

Almost surely, 2^161116884 is an apocalyptic number.

It is an amenable number.

161116884 is an abundant number, since it is smaller than the sum of its proper divisors (278583916).

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

161116884 is a wasteful number, since it uses less digits than its factorization.

161116884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78549 (or 78541 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 161116884 is about 12693.1825796370. The cubic root of 161116884 is about 544.1437993914.

The spelling of 161116884 in words is "one hundred sixty-one million, one hundred sixteen thousand, eight hundred eighty-four".