181334218879264 has 48 divisors (see below), whose sum is σ = 389475713140416. Its totient is φ = 82420567532800.

The previous prime is 181334218879241. The next prime is 181334218879273. The reversal of 181334218879264 is 462978812433181.

It is a self number, because there is not a number n which added to its sum of digits gives 181334218879264.

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, 5610487 + ... + 19853110.

It is an arithmetic number, because the mean of its divisors is an integer number (8114077357092).

Almost surely, 2^{181334218879264} is an apocalyptic number.

It is an amenable number.

181334218879264 is an abundant number, since it is smaller than the sum of its proper divisors (208141494261152).

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

181334218879264 is a wasteful number, since it uses less digits than its factorization.

181334218879264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25483849 (or 25483841 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 67.

The spelling of 181334218879264 in words is "one hundred eighty-one trillion, three hundred thirty-four billion, two hundred eighteen million, eight hundred seventy-nine thousand, two hundred sixty-four".