66142683 has 8 divisors (see below), whose sum is σ = 97989200. Its totient is φ = 44095104.

The previous prime is 66142621. The next prime is 66142697. The reversal of 66142683 is 38624166.

It is not a de Polignac number, because 66142683 - 2⁶ = 66142619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66142613) 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, 1224838 + ... + 1224891.

It is an arithmetic number, because the mean of its divisors is an integer number (12248650).

Almost surely, 2^66142683 is an apocalyptic number.

66142683 is a deficient number, since it is larger than the sum of its proper divisors (31846517).

66142683 is a wasteful number, since it uses less digits than its factorization.

66142683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449738 (or 2449732 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 66142683 is about 8132.8151952445. The cubic root of 66142683 is about 404.4150127826.

The spelling of 66142683 in words is "sixty-six million, one hundred forty-two thousand, six hundred eighty-three".