2666489559 has 16 divisors (see below), whose sum is σ = 3768811488. Its totient is φ = 1671155712.

The previous prime is 2666489557. The next prime is 2666489597. The reversal of 2666489559 is 9559846662.

It is a happy number.

It is not a de Polignac number, because 2666489559 - 2¹ = 2666489557 is a prime.

It is a super-2 number, since 2×2666489559² = 14220333136512028962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666489557) 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, 14919 + ... + 74535.

It is an arithmetic number, because the mean of its divisors is an integer number (235550718).

Almost surely, 2^2666489559 is an apocalyptic number.

2666489559 is a deficient number, since it is larger than the sum of its proper divisors (1102321929).

2666489559 is a wasteful number, since it uses less digits than its factorization.

2666489559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60514.

The product of its digits is 27993600, while the sum is 60.

The square root of 2666489559 is about 51638.0630833497. The cubic root of 2666489559 is about 1386.6918481222.

The spelling of 2666489559 in words is "two billion, six hundred sixty-six million, four hundred eighty-nine thousand, five hundred fifty-nine".