8666791986126 has 16 divisors (see below), whose sum is σ = 17334185907024. Its totient is φ = 2888830339584.

The previous prime is 8666791986119. The next prime is 8666791986131. The reversal of 8666791986126 is 6216891976668.

It is a super-2 number, since 2×8666791986126² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 24893331 + ... + 25239086.

It is an arithmetic number, because the mean of its divisors is an integer number (1083386619189).

Almost surely, 2^{8666791986126} is an apocalyptic number.

8666791986126 is an abundant number, since it is smaller than the sum of its proper divisors (8667393920898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8666791986126 is a wasteful number, since it uses less digits than its factorization.

8666791986126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50161235.

The product of its digits is 564350976, while the sum is 75.

The spelling of 8666791986126 in words is "eight trillion, six hundred sixty-six billion, seven hundred ninety-one million, nine hundred eighty-six thousand, one hundred twenty-six".