26116819666 has 16 divisors (see below), whose sum is σ = 45338423040. Its totient is φ = 11051239680.

The previous prime is 26116819649. The next prime is 26116819691. The reversal of 26116819666 is 66691861162.

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, 11805775 + ... + 11807986.

It is an arithmetic number, because the mean of its divisors is an integer number (2833651440).

Almost surely, 2^26116819666 is an apocalyptic number.

26116819666 is a deficient number, since it is larger than the sum of its proper divisors (19221603374).

26116819666 is a wasteful number, since it uses less digits than its factorization.

26116819666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23613849.

The product of its digits is 1119744, while the sum is 52.

The spelling of 26116819666 in words is "twenty-six billion, one hundred sixteen million, eight hundred nineteen thousand, six hundred sixty-six".