181278482056 has 32 divisors (see below), whose sum is σ = 392299980480. Its totient is φ = 76921560000.

The previous prime is 181278482017. The next prime is 181278482069. The reversal of 181278482056 is 650284872181.

It is a junction number, because it is equal to n+sod(n) for n = 181278481994 and 181278482012.

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, 16019670 + ... + 16030981.

It is an arithmetic number, because the mean of its divisors is an integer number (12259374390).

Almost surely, 2^181278482056 is an apocalyptic number.

It is an amenable number.

181278482056 is an abundant number, since it is smaller than the sum of its proper divisors (211021498424).

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

181278482056 is a wasteful number, since it uses less digits than its factorization.

181278482056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32050765 (or 32050761 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 181278482056 in words is "one hundred eighty-one billion, two hundred seventy-eight million, four hundred eighty-two thousand, fifty-six".