201100566791 has 2 divisors, whose sum is σ = 201100566792. Its totient is φ = 201100566790.

The previous prime is 201100566763. The next prime is 201100566817. The reversal of 201100566791 is 197665001102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201100566791 is a prime.

It is a super-2 number, since 2×201100566791² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201100562791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550283395 + 100550283396.

It is an arithmetic number, because the mean of its divisors is an integer number (100550283396).

Almost surely, 2^201100566791 is an apocalyptic number.

201100566791 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100566791 is an equidigital number, since it uses as much as digits as its factorization.

201100566791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

Adding to 201100566791 its reverse (197665001102), we get a palindrome (398765567893).

The spelling of 201100566791 in words is "two hundred one billion, one hundred million, five hundred sixty-six thousand, seven hundred ninety-one".