20066163607879 has 2 divisors, whose sum is σ = 20066163607880. Its totient is φ = 20066163607878.

The previous prime is 20066163607837. The next prime is 20066163607949. The reversal of 20066163607879 is 97870636166002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20066163607879 - 2²¹ = 20066161510727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20066163601879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033081803939 + 10033081803940.

It is an arithmetic number, because the mean of its divisors is an integer number (10033081803940).

Almost surely, 2^{20066163607879} is an apocalyptic number.

20066163607879 is a deficient number, since it is larger than the sum of its proper divisors (1).

20066163607879 is an equidigital number, since it uses as much as digits as its factorization.

20066163607879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 20066163607879 in words is "twenty trillion, sixty-six billion, one hundred sixty-three million, six hundred seven thousand, eight hundred seventy-nine".