111106666755555 has 64 divisors (see below), whose sum is σ = 186227182632960. Its totient is φ = 56511507686400.

The previous prime is 111106666755521. The next prime is 111106666755587. The reversal of 111106666755555 is 555557666601111.

It is not a de Polignac number, because 111106666755555 - 2⁸ = 111106666755299 is a prime.

It is a Sastry number since concatenated with its successor gives a square.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2544126 + ... + 15122364.

It is an arithmetic number, because the mean of its divisors is an integer number (2909799728640).

Almost surely, 2^{111106666755555} is an apocalyptic number.

111106666755555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111106666755555 is a deficient number, since it is larger than the sum of its proper divisors (75120515877405).

111106666755555 is a wasteful number, since it uses less digits than its factorization.

111106666755555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578612.

The product of its (nonzero) digits is 28350000, while the sum is 60.

The spelling of 111106666755555 in words is "one hundred eleven trillion, one hundred six billion, six hundred sixty-six million, seven hundred fifty-five thousand, five hundred fifty-five".