110666364509 has 2 divisors, whose sum is σ = 110666364510. Its totient is φ = 110666364508.

The previous prime is 110666364493. The next prime is 110666364553. The reversal of 110666364509 is 905463666011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92516347225 + 18150017284 = 304165^2 + 134722^2 .

It is a cyclic number.

It is not a de Polignac number, because 110666364509 - 2⁴ = 110666364493 is a prime.

It is a super-2 number, since 2×110666364509² (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 (110666364559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55333182254 + 55333182255.

It is an arithmetic number, because the mean of its divisors is an integer number (55333182255).

Almost surely, 2^110666364509 is an apocalyptic number.

It is an amenable number.

110666364509 is a deficient number, since it is larger than the sum of its proper divisors (1).

110666364509 is an equidigital number, since it uses as much as digits as its factorization.

110666364509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 110666364509 in words is "one hundred ten billion, six hundred sixty-six million, three hundred sixty-four thousand, five hundred nine".