2660808507 has 32 divisors (see below), whose sum is σ = 4286430720. Its totient is φ = 1434205440.

The previous prime is 2660808487. The next prime is 2660808511. The reversal of 2660808507 is 7058080662.

It is not a de Polignac number, because 2660808507 - 2⁷ = 2660808379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2660808547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78657 + ... + 107277.

It is an arithmetic number, because the mean of its divisors is an integer number (133950960).

Almost surely, 2^2660808507 is an apocalyptic number.

2660808507 is a deficient number, since it is larger than the sum of its proper divisors (1625622213).

2660808507 is a wasteful number, since it uses less digits than its factorization.

2660808507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28883.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2660808507 is about 51583.0253765713. The cubic root of 2660808507 is about 1385.7063489421.

The spelling of 2660808507 in words is "two billion, six hundred sixty million, eight hundred eight thousand, five hundred seven".