180664744 has 16 divisors (see below), whose sum is σ = 364804020. Its totient is φ = 83383680.

The previous prime is 180664733. The next prime is 180664753. The reversal of 180664744 is 447466081.

It can be written as a sum of positive squares in 2 ways, for example, as 170615844 + 10048900 = 13062^2 + 3170^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180664697 and 180664706.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 868477 + ... + 868684.

Almost surely, 2^180664744 is an apocalyptic number.

It is an amenable number.

180664744 is an abundant number, since it is smaller than the sum of its proper divisors (184139276).

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

180664744 is a wasteful number, since it uses less digits than its factorization.

180664744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737180 (or 1737176 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 180664744 is about 13441.1585810153. The cubic root of 180664744 is about 565.3158168572.

The spelling of 180664744 in words is "one hundred eighty million, six hundred sixty-four thousand, seven hundred forty-four".