2665887246 has 72 divisors (see below), whose sum is σ = 6364946952. Its totient is φ = 805807200.

The previous prime is 2665887239. The next prime is 2665887251. The reversal of 2665887246 is 6427885662.

It is a junction number, because it is equal to n+sod(n) for n = 2665887192 and 2665887201.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 1015816 + ... + 1018436.

It is an arithmetic number, because the mean of its divisors is an integer number (88402041).

Almost surely, 2^2665887246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665887246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3182473476).

2665887246 is an abundant number, since it is smaller than the sum of its proper divisors (3699059706).

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

2665887246 is a wasteful number, since it uses less digits than its factorization.

2665887246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 3104 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The square root of 2665887246 is about 51632.2306897542. The cubic root of 2665887246 is about 1386.5874305095.

The spelling of 2665887246 in words is "two billion, six hundred sixty-five million, eight hundred eighty-seven thousand, two hundred forty-six".