2666240004 has 48 divisors (see below), whose sum is σ = 6396800256. Its totient is φ = 863827200.

The previous prime is 2666239997. The next prime is 2666240021. The reversal of 2666240004 is 4000426662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123334 + ... + 143330.

It is an arithmetic number, because the mean of its divisors is an integer number (133266672).

Almost surely, 2^2666240004 is an apocalyptic number.

It is an amenable number.

2666240004 is an abundant number, since it is smaller than the sum of its proper divisors (3730560252).

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

2666240004 is a wasteful number, since it uses less digits than its factorization.

2666240004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20316 (or 20314 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 2666240004 is about 51635.6466406687. The cubic root of 2666240004 is about 1386.6485869140.

Adding to 2666240004 its reverse (4000426662), we get a palindrome (6666666666).

It can be divided in two parts, 26662 and 40004, that added together give a palindrome (66666).

The spelling of 2666240004 in words is "two billion, six hundred sixty-six million, two hundred forty thousand, four".