161495808 has 72 divisors (see below), whose sum is σ = 431692800. Its totient is φ = 53597184.

The previous prime is 161495797. The next prime is 161495821. The reversal of 161495808 is 808594161.

It is a self number, because there is not a number n which added to its sum of digits gives 161495808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336913 + ... + 337391.

Almost surely, 2^161495808 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 161495808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215846400).

161495808 is an abundant number, since it is smaller than the sum of its proper divisors (270196992).

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

161495808 is an equidigital number, since it uses as much as digits as its factorization.

161495808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 161495808 is about 12708.1000940345. The cubic root of 161495808 is about 544.5700483528.

The spelling of 161495808 in words is "one hundred sixty-one million, four hundred ninety-five thousand, eight hundred eight".