111166610055 has 8 divisors (see below), whose sum is σ = 177866576112. Its totient is φ = 59288858688.

The previous prime is 111166609999. The next prime is 111166610057. The reversal of 111166610055 is 550016661111.

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

It is not a de Polignac number, because 111166610055 - 2¹⁸ = 111166347911 is a prime.

It is a super-2 number, since 2×111166610055² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111166609998 and 111166610025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111166610057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3705553654 + ... + 3705553683.

It is an arithmetic number, because the mean of its divisors is an integer number (22233322014).

Almost surely, 2^111166610055 is an apocalyptic number.

111166610055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111166610055 is a deficient number, since it is larger than the sum of its proper divisors (66699966057).

111166610055 is an equidigital number, since it uses as much as digits as its factorization.

111166610055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411107345.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 111166610055 in words is "one hundred eleven billion, one hundred sixty-six million, six hundred ten thousand, fifty-five".