161840832545024 has 144 divisors (see below), whose sum is σ = 324755586355200. Its totient is φ = 80494530306048.

The previous prime is 161840832545017. The next prime is 161840832545083. The reversal of 161840832545024 is 420545238048161.

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, 97318599617 + ... + 97318601279.

Almost surely, 2^{161840832545024} 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 161840832545024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162377793177600).

161840832545024 is an abundant number, since it is smaller than the sum of its proper divisors (162914753810176).

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

161840832545024 is a wasteful number, since it uses less digits than its factorization.

161840832545024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080 (or 4066 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 53.

The spelling of 161840832545024 in words is "one hundred sixty-one trillion, eight hundred forty billion, eight hundred thirty-two million, five hundred forty-five thousand, twenty-four".