2165373717108 has 48 divisors (see below), whose sum is σ = 5960598626304. Its totient is φ = 598720842720.

The previous prime is 2165373717053. The next prime is 2165373717109. The reversal of 2165373717108 is 8017173735612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165373717109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415775760 + ... + 415780967.

It is an arithmetic number, because the mean of its divisors is an integer number (124179138048).

Almost surely, 2^{2165373717108} is an apocalyptic number.

2165373717108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2165373717108 is an abundant number, since it is smaller than the sum of its proper divisors (3795224909196).

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

2165373717108 is a wasteful number, since it uses less digits than its factorization.

2165373717108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831556772 (or 831556770 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 51.

The spelling of 2165373717108 in words is "two trillion, one hundred sixty-five billion, three hundred seventy-three million, seven hundred seventeen thousand, one hundred eight".