66838802702 has 20 divisors (see below), whose sum is σ = 116960953656. Its totient is φ = 28645199100.

The previous prime is 66838802689. The next prime is 66838802749. The reversal of 66838802702 is 20720883866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6954674 + ... + 6964277.

Almost surely, 2^66838802702 is an apocalyptic number.

66838802702 is a deficient number, since it is larger than the sum of its proper divisors (50122150954).

66838802702 is an equidigital number, since it uses as much as digits as its factorization.

66838802702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918981 (or 13918960 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 66838802702 in words is "sixty-six billion, eight hundred thirty-eight million, eight hundred two thousand, seven hundred two".