2165351017240 has 32 divisors (see below), whose sum is σ = 4872674777760. Its totient is φ = 866027520000.

The previous prime is 2165351017237. The next prime is 2165351017289. The reversal of 2165351017240 is 427101535612.

It is a self number, because there is not a number n which added to its sum of digits gives 2165351017240.

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, 3216636 + ... + 3831115.

It is an arithmetic number, because the mean of its divisors is an integer number (152271086805).

Almost surely, 2^{2165351017240} is an apocalyptic number.

2165351017240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165351017240 is an abundant number, since it is smaller than the sum of its proper divisors (2707323760520).

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

2165351017240 is a wasteful number, since it uses less digits than its factorization.

2165351017240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055443 (or 7055439 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 2165351017240 in words is "two trillion, one hundred sixty-five billion, three hundred fifty-one million, seventeen thousand, two hundred forty".