161084984 has 8 divisors (see below), whose sum is σ = 302034360. Its totient is φ = 80542488.

The previous prime is 161084981. The next prime is 161085019. The reversal of 161084984 is 489480161.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161084981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067804 + ... + 10067819.

It is an arithmetic number, because the mean of its divisors is an integer number (37754295).

Almost surely, 2^161084984 is an apocalyptic number.

It is an amenable number.

161084984 is a deficient number, since it is larger than the sum of its proper divisors (140949376).

161084984 is a wasteful number, since it uses less digits than its factorization.

161084984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20135629 (or 20135625 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 161084984 is about 12691.9259373824. The cubic root of 161084984 is about 544.1078848171.

The spelling of 161084984 in words is "one hundred sixty-one million, eighty-four thousand, nine hundred eighty-four".