111106665556655 has 16 divisors (see below), whose sum is σ = 142420121442144. Its totient is φ = 82916457953280.

The previous prime is 111106665556619. The next prime is 111106665556673. The reversal of 111106665556655 is 556655566601111.

It is not a de Polignac number, because 111106665556655 - 2²⁰ = 111106664508079 is a prime.

It is a super-2 number, since 2×111106665556655² (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 = 111106665556594 and 111106665556603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5783783501 + ... + 5783802710.

It is an arithmetic number, because the mean of its divisors is an integer number (8901257590134).

Almost surely, 2^{111106665556655} is an apocalyptic number.

111106665556655 is a deficient number, since it is larger than the sum of its proper divisors (31313455885489).

111106665556655 is a wasteful number, since it uses less digits than its factorization.

111106665556655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11567586346.

The product of its (nonzero) digits is 24300000, while the sum is 59.

The spelling of 111106665556655 in words is "one hundred eleven trillion, one hundred six billion, six hundred sixty-five million, five hundred fifty-six thousand, six hundred fifty-five".