113280166661 has 2 divisors, whose sum is σ = 113280166662. Its totient is φ = 113280166660.

The previous prime is 113280166583. The next prime is 113280166669. The reversal of 113280166661 is 166661082311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81292844161 + 31987322500 = 285119^2 + 178850^2 .

It is a cyclic number.

It is not a de Polignac number, because 113280166661 - 2¹⁰ = 113280165637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113280166669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56640083330 + 56640083331.

It is an arithmetic number, because the mean of its divisors is an integer number (56640083331).

Almost surely, 2^113280166661 is an apocalyptic number.

It is an amenable number.

113280166661 is a deficient number, since it is larger than the sum of its proper divisors (1).

113280166661 is an equidigital number, since it uses as much as digits as its factorization.

113280166661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 113280166661 in words is "one hundred thirteen billion, two hundred eighty million, one hundred sixty-six thousand, six hundred sixty-one".