108185052805 has 8 divisors (see below), whose sum is σ = 129826126872. Its totient is φ = 86545333248.

The previous prime is 108185052749. The next prime is 108185052847. The reversal of 108185052805 is 508250581801.

It can be written as a sum of positive squares in 4 ways, for example, as 1722499009 + 106462553796 = 41503^2 + 326286^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108185052805 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 153732 + ... + 489901.

It is an arithmetic number, because the mean of its divisors is an integer number (16228265859).

Almost surely, 2^108185052805 is an apocalyptic number.

It is an amenable number.

108185052805 is a deficient number, since it is larger than the sum of its proper divisors (21641074067).

108185052805 is an equidigital number, since it uses as much as digits as its factorization.

108185052805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677255.

The product of its (nonzero) digits is 128000, while the sum is 43.

The spelling of 108185052805 in words is "one hundred eight billion, one hundred eighty-five million, fifty-two thousand, eight hundred five".