111241665066 has 32 divisors (see below), whose sum is σ = 254517763968. Its totient is φ = 31751945280.

The previous prime is 111241665047. The next prime is 111241665077. The reversal of 111241665066 is 660566142111.

It is a happy number.

It is a super-2 number, since 2×111241665066² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1264765 + ... + 1349856.

It is an arithmetic number, because the mean of its divisors is an integer number (7953680124).

Almost surely, 2^111241665066 is an apocalyptic number.

111241665066 is an abundant number, since it is smaller than the sum of its proper divisors (143276098902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111241665066 is a wasteful number, since it uses less digits than its factorization.

111241665066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615646.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 111241665066 in words is "one hundred eleven billion, two hundred forty-one million, six hundred sixty-five thousand, sixty-six".