180366856 has 8 divisors (see below), whose sum is σ = 338187870. Its totient is φ = 90183424.

The previous prime is 180366853. The next prime is 180366869. The reversal of 180366856 is 658663081.

It can be written as a sum of positive squares in only one way, i.e., 179828100 + 538756 = 13410^2 + 734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (180366853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11272921 + ... + 11272936.

Almost surely, 2^180366856 is an apocalyptic number.

It is an amenable number.

180366856 is a deficient number, since it is larger than the sum of its proper divisors (157821014).

180366856 is a wasteful number, since it uses less digits than its factorization.

180366856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22545863 (or 22545859 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 180366856 is about 13430.0728218428. The cubic root of 180366856 is about 565.0049400461.

The spelling of 180366856 in words is "one hundred eighty million, three hundred sixty-six thousand, eight hundred fifty-six".