180542066 has 32 divisors (see below), whose sum is σ = 294088320. Its totient is φ = 82857600.

The previous prime is 180542059. The next prime is 180542077. The reversal of 180542066 is 660245081.

180542066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 1805 and 42066 contains 180542066 itself.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164030 + ... + 165126.

It is an arithmetic number, because the mean of its divisors is an integer number (9190260).

Almost surely, 2^180542066 is an apocalyptic number.

180542066 is a deficient number, since it is larger than the sum of its proper divisors (113546254).

180542066 is a wasteful number, since it uses less digits than its factorization.

180542066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 180542066 is about 13436.5942857556. The cubic root of 180542066 is about 565.1878311461.

The spelling of 180542066 in words is "one hundred eighty million, five hundred forty-two thousand, sixty-six".