66475486 has 16 divisors (see below), whose sum is σ = 124318080. Its totient is φ = 25899480.

The previous prime is 66475481. The next prime is 66475489. The reversal of 66475486 is 68457466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66475481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215676 + ... + 215983.

It is an arithmetic number, because the mean of its divisors is an integer number (7769880).

Almost surely, 2^66475486 is an apocalyptic number.

66475486 is a deficient number, since it is larger than the sum of its proper divisors (57842594).

66475486 is a wasteful number, since it uses less digits than its factorization.

66475486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431679.

The product of its digits is 967680, while the sum is 46.

The square root of 66475486 is about 8153.2500268298. The cubic root of 66475486 is about 405.0921621281.

The spelling of 66475486 in words is "sixty-six million, four hundred seventy-five thousand, four hundred eighty-six".