110665666779 has 16 divisors (see below), whose sum is σ = 151552718112. Its totient is φ = 71778140928.

The previous prime is 110665666777. The next prime is 110665666807. The reversal of 110665666779 is 977666566011.

It is a happy number.

It is not a de Polignac number, because 110665666779 - 2¹ = 110665666777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (110665666777) 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, 2232447 + ... + 2281479.

It is an arithmetic number, because the mean of its divisors is an integer number (9472044882).

Almost surely, 2^110665666779 is an apocalyptic number.

110665666779 is a deficient number, since it is larger than the sum of its proper divisors (40887051333).

110665666779 is a wasteful number, since it uses less digits than its factorization.

110665666779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69406.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 110665666779 in words is "one hundred ten billion, six hundred sixty-five million, six hundred sixty-six thousand, seven hundred seventy-nine".