2165409370088 has 32 divisors (see below), whose sum is σ = 4116180499200. Its totient is φ = 1067764261248.

The previous prime is 2165409370081. The next prime is 2165409370099. The reversal of 2165409370088 is 8800739045612.

It is a Cunningham number, because it is equal to 1471533²-1.

It is not an unprimeable number, because it can be changed into a prime (2165409370081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5702195 + ... + 6070077.

It is an arithmetic number, because the mean of its divisors is an integer number (128630640600).

It is a 1-persistent number, because it is pandigital, but 2⋅2165409370088 = 4330818740176 is not.

Almost surely, 2^{2165409370088} is an apocalyptic number.

It is an amenable number.

2165409370088 is a deficient number, since it is larger than the sum of its proper divisors (1950771129112).

2165409370088 is a wasteful number, since it uses less digits than its factorization.

2165409370088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378041 (or 378037 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 2165409370088 in words is "two trillion, one hundred sixty-five billion, four hundred nine million, three hundred seventy thousand, eighty-eight".