112668278089981 has 4 divisors (see below), whose sum is σ = 112668344841052. Its totient is φ = 112668211338912.

The previous prime is 112668278089951. The next prime is 112668278090033. The reversal of 112668278089981 is 189980872866211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67246002533956 + 45422275556025 = 8200366^2 + 6739605^2 .

It is a cyclic number.

It is not a de Polignac number, because 112668278089981 - 2¹¹ = 112668278087933 is a prime.

It is a super-2 number, since 2×112668278089981² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112668278089898 and 112668278089907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112668278089951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30776226 + ... + 34241971.

It is an arithmetic number, because the mean of its divisors is an integer number (28167086210263).

Almost surely, 2^{112668278089981} is an apocalyptic number.

It is an amenable number.

112668278089981 is a deficient number, since it is larger than the sum of its proper divisors (66751071).

112668278089981 is an equidigital number, since it uses as much as digits as its factorization.

112668278089981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66751070.

The product of its (nonzero) digits is 334430208, while the sum is 76.

The spelling of 112668278089981 in words is "one hundred twelve trillion, six hundred sixty-eight billion, two hundred seventy-eight million, eighty-nine thousand, nine hundred eighty-one".