161485824 has 44 divisors (see below), whose sum is σ = 430426784. Its totient is φ = 53827584.

The previous prime is 161485813. The next prime is 161485861. The reversal of 161485824 is 428584161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23212 + ... + 29355.

Almost surely, 2^161485824 is an apocalyptic number.

It is an amenable number.

161485824 is an abundant number, since it is smaller than the sum of its proper divisors (268940960).

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

161485824 is an equidigital number, since it uses as much as digits as its factorization.

161485824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52590 (or 52572 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 161485824 is about 12707.7072676388. The cubic root of 161485824 is about 544.5588259781.

The spelling of 161485824 in words is "one hundred sixty-one million, four hundred eighty-five thousand, eight hundred twenty-four".