20116755475099 has 2 divisors, whose sum is σ = 20116755475100. Its totient is φ = 20116755475098.

The previous prime is 20116755475097. The next prime is 20116755475199. The reversal of 20116755475099 is 99057455761102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20116755475099 - 2¹ = 20116755475097 is a prime.

Together with 20116755475097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20116755475097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058377737549 + 10058377737550.

It is an arithmetic number, because the mean of its divisors is an integer number (10058377737550).

Almost surely, 2^{20116755475099} is an apocalyptic number.

20116755475099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116755475099 is an equidigital number, since it uses as much as digits as its factorization.

20116755475099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814000, while the sum is 61.

The spelling of 20116755475099 in words is "twenty trillion, one hundred sixteen billion, seven hundred fifty-five million, four hundred seventy-five thousand, ninety-nine".