161196984 has 48 divisors (see below), whose sum is σ = 470160600. Its totient is φ = 49598784.

The previous prime is 161196979. The next prime is 161196989. The reversal of 161196984 is 489691161.

It is an interprime number because it is at equal distance from previous prime (161196979) and next prime (161196989).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161196989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85174 + ... + 87045.

Almost surely, 2^161196984 is an apocalyptic number.

It is an amenable number.

161196984 is an abundant number, since it is smaller than the sum of its proper divisors (308963616).

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

161196984 is a wasteful number, since it uses less digits than its factorization.

161196984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172244 (or 172237 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 161196984 is about 12696.3374246276. The cubic root of 161196984 is about 544.2339589829.

The spelling of 161196984 in words is "one hundred sixty-one million, one hundred ninety-six thousand, nine hundred eighty-four".