66748084766 has 24 divisors (see below), whose sum is σ = 114179507064. Its totient is φ = 29020901360.

The previous prime is 66748084709. The next prime is 66748084783.

66748084766 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66748084699 and 66748084708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2856041 + ... + 2879316.

It is an arithmetic number, because the mean of its divisors is an integer number (4757479461).

Almost surely, 2^66748084766 is an apocalyptic number.

66748084766 is a deficient number, since it is larger than the sum of its proper divisors (47431422298).

66748084766 is a wasteful number, since it uses less digits than its factorization.

66748084766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735416 (or 5735393 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 62.

The spelling of 66748084766 in words is "sixty-six billion, seven hundred forty-eight million, eighty-four thousand, seven hundred sixty-six".