20088236615081 has 2 divisors, whose sum is σ = 20088236615082. Its totient is φ = 20088236615080.

The previous prime is 20088236615021. The next prime is 20088236615119. The reversal of 20088236615081 is 18051663288002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16017764928400 + 4070471686681 = 4002220^2 + 2017541^2 .

It is a cyclic number.

It is not a de Polignac number, because 20088236615081 - 2²⁶ = 20088169506217 is a prime.

It is a super-2 number, since 2×20088236615081² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20088236615021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10044118307540 + 10044118307541.

It is an arithmetic number, because the mean of its divisors is an integer number (10044118307541).

Almost surely, 2^{20088236615081} is an apocalyptic number.

It is an amenable number.

20088236615081 is a deficient number, since it is larger than the sum of its proper divisors (1).

20088236615081 is an equidigital number, since it uses as much as digits as its factorization.

20088236615081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 20088236615081 in words is "twenty trillion, eighty-eight billion, two hundred thirty-six million, six hundred fifteen thousand, eighty-one".