181432948080 has 40 divisors (see below), whose sum is σ = 562442139792. Its totient is φ = 48382119424.

The previous prime is 181432948079. The next prime is 181432948097. The reversal of 181432948080 is 80849234181.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 377985069 + ... + 377985548.

Almost surely, 2^181432948080 is an apocalyptic number.

181432948080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181432948080 is an abundant number, since it is smaller than the sum of its proper divisors (381009191712).

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

181432948080 is a wasteful number, since it uses less digits than its factorization.

181432948080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755970633 (or 755970627 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 181432948080 in words is "one hundred eighty-one billion, four hundred thirty-two million, nine hundred forty-eight thousand, eighty".