1108128065 has 16 divisors (see below), whose sum is σ = 1465010496. Its totient is φ = 797928000.

The previous prime is 1108128037. The next prime is 1108128149. The reversal of 1108128065 is 5608218011.

It is not a de Polignac number, because 1108128065 - 2⁶ = 1108128001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94187 + ... + 105296.

It is an arithmetic number, because the mean of its divisors is an integer number (91563156).

Almost surely, 2^1108128065 is an apocalyptic number.

It is an amenable number.

1108128065 is a deficient number, since it is larger than the sum of its proper divisors (356882431).

1108128065 is a wasteful number, since it uses less digits than its factorization.

1108128065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199600.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 1108128065 is about 33288.5575686301. The cubic root of 1108128065 is about 1034.8164361303.

The spelling of 1108128065 in words is "one billion, one hundred eight million, one hundred twenty-eight thousand, sixty-five".