111110077445669 has 2 divisors, whose sum is σ = 111110077445670. Its totient is φ = 111110077445668.

The previous prime is 111110077445641. The next prime is 111110077445681. The reversal of 111110077445669 is 966544770011111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109657799384644 + 1452278061025 = 10471762^2 + 1205105^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110077445669 - 2³² = 111105782478373 is a prime.

It is a super-2 number, since 2×111110077445669² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111110077445669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111110077445069) 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, 55555038722834 + 55555038722835.

It is an arithmetic number, because the mean of its divisors is an integer number (55555038722835).

Almost surely, 2^{111110077445669} is an apocalyptic number.

It is an amenable number.

111110077445669 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110077445669 is an equidigital number, since it uses as much as digits as its factorization.

111110077445669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 111110077445669 in words is "one hundred eleven trillion, one hundred ten billion, seventy-seven million, four hundred forty-five thousand, six hundred sixty-nine".