180530280068 has 24 divisors (see below), whose sum is σ = 321166240920. Its totient is φ = 88769041920.

The previous prime is 180530280067. The next prime is 180530280103. The reversal of 180530280068 is 860082035081.

It can be written as a sum of positive squares in 4 ways, for example, as 1018758724 + 179511521344 = 31918^2 + 423688^2 .

It is not an unprimeable number, because it can be changed into a prime (180530280067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317980 + ... + 1448492.

It is an arithmetic number, because the mean of its divisors is an integer number (13381926705).

Almost surely, 2^180530280068 is an apocalyptic number.

It is an amenable number.

180530280068 is a deficient number, since it is larger than the sum of its proper divisors (140635960852).

180530280068 is a wasteful number, since it uses less digits than its factorization.

180530280068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136247 (or 136245 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 180530280068 in words is "one hundred eighty billion, five hundred thirty million, two hundred eighty thousand, sixty-eight".