113018081668 has 12 divisors (see below), whose sum is σ = 197887027212. Its totient is φ = 56478931040.

The previous prime is 113018081611. The next prime is 113018081677. The reversal of 113018081668 is 866180810311.

It can be written as a sum of positive squares in 2 ways, for example, as 71919439684 + 41098641984 = 268178^2 + 202728^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7519003 + ... + 7534018.

It is an arithmetic number, because the mean of its divisors is an integer number (16490585601).

Almost surely, 2^113018081668 is an apocalyptic number.

It is an amenable number.

113018081668 is a deficient number, since it is larger than the sum of its proper divisors (84868945544).

113018081668 is a wasteful number, since it uses less digits than its factorization.

113018081668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15054902 (or 15054900 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 43.

Adding to 113018081668 its reverse (866180810311), we get a palindrome (979198891979).

The spelling of 113018081668 in words is "one hundred thirteen billion, eighteen million, eighty-one thousand, six hundred sixty-eight".