111665106061 has 8 divisors (see below), whose sum is σ = 112260607200. Its totient is φ = 111071063952.

The previous prime is 111665106041. The next prime is 111665106121. The reversal of 111665106061 is 160601566111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111665106061 - 2²⁷ = 111530888333 is a prime.

It is a super-2 number, since 2×111665106061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111665106001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211111 + ... + 517588.

It is an arithmetic number, because the mean of its divisors is an integer number (14032575900).

Almost surely, 2^111665106061 is an apocalyptic number.

It is an amenable number.

111665106061 is a deficient number, since it is larger than the sum of its proper divisors (595501139).

111665106061 is an equidigital number, since it uses as much as digits as its factorization.

111665106061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729515.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 111665106061 in words is "one hundred eleven billion, six hundred sixty-five million, one hundred six thousand, sixty-one".