211168054499 has 2 divisors, whose sum is σ = 211168054500. Its totient is φ = 211168054498.

The previous prime is 211168054477. The next prime is 211168054501. The reversal of 211168054499 is 994450861112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211168054499 is a prime.

Together with 211168054501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211168054459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105584027249 + 105584027250.

It is an arithmetic number, because the mean of its divisors is an integer number (105584027250).

Almost surely, 2^211168054499 is an apocalyptic number.

211168054499 is a deficient number, since it is larger than the sum of its proper divisors (1).

211168054499 is an equidigital number, since it uses as much as digits as its factorization.

211168054499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 211168054499 in words is "two hundred eleven billion, one hundred sixty-eight million, fifty-four thousand, four hundred ninety-nine".