66747163 has 12 divisors (see below), whose sum is σ = 78419232. Its totient is φ = 56641200.

The previous prime is 66747103. The next prime is 66747181. The reversal of 66747163 is 36174766.

It is not a de Polignac number, because 66747163 - 2⁹ = 66746651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66747103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1795 + ... + 11692.

It is an arithmetic number, because the mean of its divisors is an integer number (6534936).

Almost surely, 2^66747163 is an apocalyptic number.

66747163 is a deficient number, since it is larger than the sum of its proper divisors (11672069).

66747163 is a wasteful number, since it uses less digits than its factorization.

66747163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13602 (or 13595 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 66747163 is about 8169.8936957588. The cubic root of 66747163 is about 405.6432657177.

The spelling of 66747163 in words is "sixty-six million, seven hundred forty-seven thousand, one hundred sixty-three".