66480586 has 8 divisors (see below), whose sum is σ = 103159620. Its totient is φ = 32094048.

The previous prime is 66480581. The next prime is 66480611. The reversal of 66480586 is 68508466.

It can be written as a sum of positive squares in 2 ways, for example, as 63504961 + 2975625 = 7969^2 + 1725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66480581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573051 + ... + 573166.

Almost surely, 2^66480586 is an apocalyptic number.

66480586 is a deficient number, since it is larger than the sum of its proper divisors (36679034).

66480586 is a wasteful number, since it uses less digits than its factorization.

66480586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146248.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 66480586 is about 8153.5627795461. The cubic root of 66480586 is about 405.1025214215.

The spelling of 66480586 in words is "sixty-six million, four hundred eighty thousand, five hundred eighty-six".