1655085508818 has 96 divisors (see below), whose sum is σ = 4139511091200. Its totient is φ = 438461233056.

The previous prime is 1655085508789. The next prime is 1655085508831. The reversal of 1655085508818 is 8188055805561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2889498 + ... + 3414581.

It is an arithmetic number, because the mean of its divisors is an integer number (43119907200).

Almost surely, 2^{1655085508818} is an apocalyptic number.

1655085508818 is an abundant number, since it is smaller than the sum of its proper divisors (2484425582382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1655085508818 is a wasteful number, since it uses less digits than its factorization.

1655085508818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304164 (or 6304157 counting only the distinct ones).

The product of its (nonzero) digits is 15360000, while the sum is 60.

The spelling of 1655085508818 in words is "one trillion, six hundred fifty-five billion, eighty-five million, five hundred eight thousand, eight hundred eighteen".