180716466 has 16 divisors (see below), whose sum is σ = 413066304. Its totient is φ = 51633264.

The previous prime is 180716461. The next prime is 180716491. The reversal of 180716466 is 664617081.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (180716461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151345 + ... + 2151428.

It is an arithmetic number, because the mean of its divisors is an integer number (25816644).

Almost surely, 2^180716466 is an apocalyptic number.

180716466 is an abundant number, since it is smaller than the sum of its proper divisors (232349838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180716466 is a wasteful number, since it uses less digits than its factorization.

180716466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302785.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 180716466 is about 13443.0824590196. The cubic root of 180716466 is about 565.3697592668.

The spelling of 180716466 in words is "one hundred eighty million, seven hundred sixteen thousand, four hundred sixty-six".