111055561005 has 16 divisors (see below), whose sum is σ = 179938126080. Its totient is φ = 58479889728.

The previous prime is 111055560989. The next prime is 111055561009. The reversal of 111055561005 is 500165550111.

It is not a de Polignac number, because 111055561005 - 2⁴ = 111055560989 is a prime.

It is a super-2 number, since 2×111055561005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111055561009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46857702 + ... + 46860071.

It is an arithmetic number, because the mean of its divisors is an integer number (11246132880).

Almost surely, 2^111055561005 is an apocalyptic number.

111055561005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111055561005 is a deficient number, since it is larger than the sum of its proper divisors (68882565075).

111055561005 is an equidigital number, since it uses as much as digits as its factorization.

111055561005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93717860.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 111055561005 in words is "one hundred eleven billion, fifty-five million, five hundred sixty-one thousand, five".