180509168930 has 16 divisors (see below), whose sum is σ = 325954581624. Its totient is φ = 71972983680.

The previous prime is 180509168921. The next prime is 180509168933. The reversal of 180509168930 is 39861905081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33679957441 + 146829211489 = 183521^2 + 383183^2 .

It is not an unprimeable number, because it can be changed into a prime (180509168933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28832201 + ... + 28838460.

Almost surely, 2^180509168930 is an apocalyptic number.

180509168930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180509168930 is a deficient number, since it is larger than the sum of its proper divisors (145445412694).

180509168930 is a wasteful number, since it uses less digits than its factorization.

180509168930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57670981.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 180509168930 in words is "one hundred eighty billion, five hundred nine million, one hundred sixty-eight thousand, nine hundred thirty".