180348866 has 4 divisors (see below), whose sum is σ = 270523302. Its totient is φ = 90174432.

The previous prime is 180348853. The next prime is 180348871. The reversal of 180348866 is 668843081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 180123241 + 225625 = 13421^2 + 475^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45087215 + ... + 45087218.

Almost surely, 2^180348866 is an apocalyptic number.

180348866 is a deficient number, since it is larger than the sum of its proper divisors (90174436).

180348866 is an equidigital number, since it uses as much as digits as its factorization.

180348866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90174435.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 180348866 is about 13429.4030395993. The cubic root of 180348866 is about 564.9861546716.

The spelling of 180348866 in words is "one hundred eighty million, three hundred forty-eight thousand, eight hundred sixty-six".