20066712194 has 16 divisors (see below), whose sum is σ = 30685154400. Its totient is φ = 9839159904.

The previous prime is 20066712191. The next prime is 20066712203. The reversal of 20066712194 is 49121766002.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20066712191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159632 + ... + 256155.

It is an arithmetic number, because the mean of its divisors is an integer number (1917822150).

Almost surely, 2^20066712194 is an apocalyptic number.

20066712194 is a deficient number, since it is larger than the sum of its proper divisors (10618442206).

20066712194 is a wasteful number, since it uses less digits than its factorization.

20066712194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416257.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 20066712194 in words is "twenty billion, sixty-six million, seven hundred twelve thousand, one hundred ninety-four".