180783664464 has 160 divisors (see below), whose sum is σ = 510162347520. Its totient is φ = 54830370816.

The previous prime is 180783664459. The next prime is 180783664489. The reversal of 180783664464 is 464466387081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33370684 + ... + 33376100.

It is an arithmetic number, because the mean of its divisors is an integer number (3188514672).

Almost surely, 2^180783664464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180783664464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255081173760).

180783664464 is an abundant number, since it is smaller than the sum of its proper divisors (329378683056).

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

180783664464 is a wasteful number, since it uses less digits than its factorization.

180783664464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197 (or 6191 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 57.

The spelling of 180783664464 in words is "one hundred eighty billion, seven hundred eighty-three million, six hundred sixty-four thousand, four hundred sixty-four".