109056564865 has 8 divisors (see below), whose sum is σ = 130871272680. Its totient is φ = 87242988672.

The previous prime is 109056564853. The next prime is 109056564949. The reversal of 109056564865 is 568465650901.

It can be written as a sum of positive squares in 4 ways, for example, as 68784503824 + 40272061041 = 262268^2 + 200679^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 109056564865 - 2⁷ = 109056564737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54054 + ... + 470143.

It is an arithmetic number, because the mean of its divisors is an integer number (16358909085).

Almost surely, 2^109056564865 is an apocalyptic number.

It is an amenable number.

109056564865 is a deficient number, since it is larger than the sum of its proper divisors (21814707815).

109056564865 is an equidigital number, since it uses as much as digits as its factorization.

109056564865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565811.

The product of its (nonzero) digits is 7776000, while the sum is 55.

The spelling of 109056564865 in words is "one hundred nine billion, fifty-six million, five hundred sixty-four thousand, eight hundred sixty-five".