111111006061 has 36 divisors (see below), whose sum is σ = 134605314144. Its totient is φ = 90933462400.

The previous prime is 111111006043. The next prime is 111111006067. The reversal of 111111006061 is 160600111111.

It is a happy number.

It is not a de Polignac number, because 111111006061 - 2⁷ = 111111005933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111006067) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1648656 + ... + 1714726.

It is an arithmetic number, because the mean of its divisors is an integer number (3739036504).

Almost surely, 2^111111006061 is an apocalyptic number.

111111006061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111111006061 is a deficient number, since it is larger than the sum of its proper divisors (23494308083).

111111006061 is a wasteful number, since it uses less digits than its factorization.

111111006061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66162 (or 66122 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 111111006061 its reverse (160600111111), we get a palindrome (271711117172).

The spelling of 111111006061 in words is "one hundred eleven billion, one hundred eleven million, six thousand, sixty-one".