180691011804 has 48 divisors (see below), whose sum is σ = 444214697472. Its totient is φ = 57052281792.

The previous prime is 180691011803. The next prime is 180691011847. The reversal of 180691011804 is 408110196081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180691011803) 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, 3149619 + ... + 3206474.

It is an arithmetic number, because the mean of its divisors is an integer number (9254472864).

Almost surely, 2^180691011804 is an apocalyptic number.

It is an amenable number.

180691011804 is an abundant number, since it is smaller than the sum of its proper divisors (263523685668).

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

180691011804 is a wasteful number, since it uses less digits than its factorization.

180691011804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356226 (or 6356224 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 39.

The spelling of 180691011804 in words is "one hundred eighty billion, six hundred ninety-one million, eleven thousand, eight hundred four".