66264143 has 8 divisors (see below), whose sum is σ = 74620416. Its totient is φ = 58296600.

The previous prime is 66264131. The next prime is 66264169. The reversal of 66264143 is 34146266.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66264143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66260143) 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, 96821 + ... + 97502.

It is an arithmetic number, because the mean of its divisors is an integer number (9327552).

Almost surely, 2^66264143 is an apocalyptic number.

66264143 is a deficient number, since it is larger than the sum of its proper divisors (8356273).

66264143 is a wasteful number, since it uses less digits than its factorization.

66264143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194365.

The product of its digits is 20736, while the sum is 32.

The square root of 66264143 is about 8140.2790492710. The cubic root of 66264143 is about 404.6624083060.

The spelling of 66264143 in words is "sixty-six million, two hundred sixty-four thousand, one hundred forty-three".