181648896 has 160 divisors (see below), whose sum is σ = 569213568. Its totient is φ = 50749440.

The previous prime is 181648891. The next prime is 181648913. The reversal of 181648896 is 698846181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181648891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219235 + ... + 220061.

Almost surely, 2^181648896 is an apocalyptic number.

181648896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181648896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284606784).

181648896 is an abundant number, since it is smaller than the sum of its proper divisors (387564672).

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

181648896 is a wasteful number, since it uses less digits than its factorization.

181648896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 856 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 181648896 is about 13477.7185012895. The cubic root of 181648896 is about 566.3404578477.

The spelling of 181648896 in words is "one hundred eighty-one million, six hundred forty-eight thousand, eight hundred ninety-six".