2660089989 has 16 divisors (see below), whose sum is σ = 3731284800. Its totient is φ = 1683217536.

The previous prime is 2660089961. The next prime is 2660090009. The reversal of 2660089989 is 9899800662.

It is not a de Polignac number, because 2660089989 - 2¹² = 2660085893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660089489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253984 + ... + 264249.

It is an arithmetic number, because the mean of its divisors is an integer number (233205300).

Almost surely, 2^2660089989 is an apocalyptic number.

2660089989 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2660089989 is a deficient number, since it is larger than the sum of its proper divisors (1071194811).

2660089989 is a wasteful number, since it uses less digits than its factorization.

2660089989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518324.

The product of its (nonzero) digits is 3359232, while the sum is 57.

The square root of 2660089989 is about 51576.0602314679. The cubic root of 2660089989 is about 1385.5816068337.

The spelling of 2660089989 in words is "two billion, six hundred sixty million, eighty-nine thousand, nine hundred eighty-nine".