181880680943 has 12 divisors (see below), whose sum is σ = 199887250248. Its totient is φ = 165384030240.

The previous prime is 181880680937. The next prime is 181880680963. The reversal of 181880680943 is 349086088181.

It is not a de Polignac number, because 181880680943 - 2³² = 177585713647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181880680913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8020148 + ... + 8042793.

It is an arithmetic number, because the mean of its divisors is an integer number (16657270854).

Almost surely, 2^181880680943 is an apocalyptic number.

181880680943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

181880680943 is a deficient number, since it is larger than the sum of its proper divisors (18006569305).

181880680943 is a wasteful number, since it uses less digits than its factorization.

181880680943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16063034 (or 16063021 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 56.

The spelling of 181880680943 in words is "one hundred eighty-one billion, eight hundred eighty million, six hundred eighty thousand, nine hundred forty-three".