2165301040 has 40 divisors (see below), whose sum is σ = 5753515680. Its totient is φ = 742388736.

The previous prime is 2165301031. The next prime is 2165301053. The reversal of 2165301040 is 401035612.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1932745 + ... + 1933864.

It is an arithmetic number, because the mean of its divisors is an integer number (143837892).

Almost surely, 2^2165301040 is an apocalyptic number.

2165301040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165301040 is an abundant number, since it is smaller than the sum of its proper divisors (3588214640).

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

2165301040 is a wasteful number, since it uses less digits than its factorization.

2165301040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866629 (or 3866623 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2165301040 is about 46532.7953168515. The cubic root of 2165301040 is about 1293.7174264555.

Adding to 2165301040 its reverse (401035612), we get a palindrome (2566336652).

The spelling of 2165301040 in words is "two billion, one hundred sixty-five million, three hundred one thousand, forty".