20059774156811 has 2 divisors, whose sum is σ = 20059774156812. Its totient is φ = 20059774156810.

The previous prime is 20059774156787. The next prime is 20059774156843. The reversal of 20059774156811 is 11865147795002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20059774156811 - 2¹⁰ = 20059774155787 is a prime.

It is not a weakly prime, because it can be changed into another prime (20059774156111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029887078405 + 10029887078406.

It is an arithmetic number, because the mean of its divisors is an integer number (10029887078406).

Almost surely, 2^{20059774156811} is an apocalyptic number.

20059774156811 is a deficient number, since it is larger than the sum of its proper divisors (1).

20059774156811 is an equidigital number, since it uses as much as digits as its factorization.

20059774156811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 56.

The spelling of 20059774156811 in words is "twenty trillion, fifty-nine billion, seven hundred seventy-four million, one hundred fifty-six thousand, eight hundred eleven".