109551802050217 has 2 divisors, whose sum is σ = 109551802050218. Its totient is φ = 109551802050216.

The previous prime is 109551802050149. The next prime is 109551802050331. The reversal of 109551802050217 is 712050208155901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69187393866816 + 40364408183401 = 8317896^2 + 6353299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109551802050217 is a prime.

It is not a weakly prime, because it can be changed into another prime (109551802020217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54775901025108 + 54775901025109.

It is an arithmetic number, because the mean of its divisors is an integer number (54775901025109).

Almost surely, 2^{109551802050217} is an apocalyptic number.

It is an amenable number.

109551802050217 is a deficient number, since it is larger than the sum of its proper divisors (1).

109551802050217 is an equidigital number, since it uses as much as digits as its factorization.

109551802050217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 46.

The spelling of 109551802050217 in words is "one hundred nine trillion, five hundred fifty-one billion, eight hundred two million, fifty thousand, two hundred seventeen".