161453336 has 64 divisors (see below), whose sum is σ = 353548800. Its totient is φ = 68342400.

The previous prime is 161453321. The next prime is 161453359. The reversal of 161453336 is 633354161.

161453336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101201 + ... + 102783.

It is an arithmetic number, because the mean of its divisors is an integer number (5524200).

Almost surely, 2^161453336 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 161453336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176774400).

161453336 is an abundant number, since it is smaller than the sum of its proper divisors (192095464).

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

161453336 is a wasteful number, since it uses less digits than its factorization.

161453336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1676 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 161453336 is about 12706.4289239739. The cubic root of 161453336 is about 544.5223050971.

The spelling of 161453336 in words is "one hundred sixty-one million, four hundred fifty-three thousand, three hundred thirty-six".