110666426565 has 16 divisors (see below), whose sum is σ = 177070416768. Its totient is φ = 59020716096.

The previous prime is 110666426557. The next prime is 110666426569. The reversal of 110666426565 is 565624666011.

It is not a de Polignac number, because 110666426565 - 2³ = 110666426557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110666426569) 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, 1150104 + ... + 1242606.

It is an arithmetic number, because the mean of its divisors is an integer number (11066901048).

Almost surely, 2^110666426565 is an apocalyptic number.

110666426565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

110666426565 is a deficient number, since it is larger than the sum of its proper divisors (66403990203).

110666426565 is an equidigital number, since it uses as much as digits as its factorization.

110666426565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172268.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 110666426565 in words is "one hundred ten billion, six hundred sixty-six million, four hundred twenty-six thousand, five hundred sixty-five".