180645806 has 16 divisors (see below), whose sum is σ = 311160960. Its totient is φ = 77789880.

The previous prime is 180645799. The next prime is 180645923. The reversal of 180645806 is 608546081.

180645806 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 180645806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215666 + ... + 216501.

It is an arithmetic number, because the mean of its divisors is an integer number (19447560).

Almost surely, 2^180645806 is an apocalyptic number.

180645806 is a deficient number, since it is larger than the sum of its proper divisors (130515154).

180645806 is a wasteful number, since it uses less digits than its factorization.

180645806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432199.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 180645806 is about 13440.4540845910. The cubic root of 180645806 is about 565.2960632797.

The spelling of 180645806 in words is "one hundred eighty million, six hundred forty-five thousand, eight hundred six".