66703674039 has 16 divisors (see below), whose sum is σ = 94249098720. Its totient is φ = 41888483840.

The previous prime is 66703674013. The next prime is 66703674047. The reversal of 66703674039 is 93047630766.

It is a cyclic number.

It is not a de Polignac number, because 66703674039 - 2⁸ = 66703673783 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66703673982 and 66703674000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66703674139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9346542 + ... + 9353675.

It is an arithmetic number, because the mean of its divisors is an integer number (5890568670).

Almost surely, 2^66703674039 is an apocalyptic number.

66703674039 is a deficient number, since it is larger than the sum of its proper divisors (27545424681).

66703674039 is a wasteful number, since it uses less digits than its factorization.

66703674039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18700290.

The product of its (nonzero) digits is 3429216, while the sum is 51.

The spelling of 66703674039 in words is "sixty-six billion, seven hundred three million, six hundred seventy-four thousand, thirty-nine".