2665040503236 has 96 divisors (see below), whose sum is σ = 6614878704000. Its totient is φ = 832710067200.

The previous prime is 2665040503231. The next prime is 2665040503247. The reversal of 2665040503236 is 6323050405662.

It is not an unprimeable number, because it can be changed into a prime (2665040503231) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 35633016 + ... + 35707728.

It is an arithmetic number, because the mean of its divisors is an integer number (68904986500).

Almost surely, 2^{2665040503236} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665040503236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3307439352000).

2665040503236 is an abundant number, since it is smaller than the sum of its proper divisors (3949838200764).

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

2665040503236 is a wasteful number, since it uses less digits than its factorization.

2665040503236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76389 (or 76387 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

Adding to 2665040503236 its reverse (6323050405662), we get a palindrome (8988090908898).

The spelling of 2665040503236 in words is "two trillion, six hundred sixty-five billion, forty million, five hundred three thousand, two hundred thirty-six".