161914368 has 240 divisors, whose sum is σ = 552714624. Its totient is φ = 40919040.

The previous prime is 161914321. The next prime is 161914373. The reversal of 161914368 is 863419161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4376046 + ... + 4376082.

Almost surely, 2^161914368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161914368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276357312).

161914368 is an abundant number, since it is smaller than the sum of its proper divisors (390800256).

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

161914368 is an equidigital number, since it uses as much as digits as its factorization.

161914368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 60 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 161914368 is about 12724.5576740412. The cubic root of 161914368 is about 545.0401092721.

The spelling of 161914368 in words is "one hundred sixty-one million, nine hundred fourteen thousand, three hundred sixty-eight".