66011131206194 has 8 divisors (see below), whose sum is σ = 103321770583680. Its totient is φ = 31570541011636.

The previous prime is 66011131206193. The next prime is 66011131206257. The reversal of 66011131206194 is 49160213111066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66011131206191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717512295674 + ... + 717512295765.

It is an arithmetic number, because the mean of its divisors is an integer number (12915221322960).

Almost surely, 2^{66011131206194} is an apocalyptic number.

66011131206194 is a deficient number, since it is larger than the sum of its proper divisors (37310639377486).

66011131206194 is a wasteful number, since it uses less digits than its factorization.

66011131206194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435024591464.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 66011131206194 in words is "sixty-six trillion, eleven billion, one hundred thirty-one million, two hundred six thousand, one hundred ninety-four".