66134826796 has 24 divisors (see below), whose sum is σ = 123713511264. Its totient is φ = 30858241920.

The previous prime is 66134826767. The next prime is 66134826803. The reversal of 66134826796 is 69762843166.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66134826796.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8762775 + ... + 8770318.

It is an arithmetic number, because the mean of its divisors is an integer number (5154729636).

Almost surely, 2^66134826796 is an apocalyptic number.

It is an amenable number.

66134826796 is a deficient number, since it is larger than the sum of its proper divisors (57578684468).

66134826796 is a wasteful number, since it uses less digits than its factorization.

66134826796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17533161 (or 17533159 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 58.

The spelling of 66134826796 in words is "sixty-six billion, one hundred thirty-four million, eight hundred twenty-six thousand, seven hundred ninety-six".