2666544522 has 8 divisors (see below), whose sum is σ = 5333089056. Its totient is φ = 888848172.

The previous prime is 2666544521. The next prime is 2666544557. The reversal of 2666544522 is 2254456662.

It is a sphenic number, since it is the product of 3 distinct primes.

2666544522 is an admirable number.

It is a super-2 number, since 2×2666544522² = 14220919375616416968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2666544521) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 222212038 + ... + 222212049.

It is an arithmetic number, because the mean of its divisors is an integer number (666636132).

Almost surely, 2^2666544522 is an apocalyptic number.

2666544522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2666544522 is a wasteful number, since it uses less digits than its factorization.

2666544522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444424092.

The product of its digits is 691200, while the sum is 42.

The square root of 2666544522 is about 51638.5952752396. The cubic root of 2666544522 is about 1386.7013757826.

The spelling of 2666544522 in words is "two billion, six hundred sixty-six million, five hundred forty-four thousand, five hundred twenty-two".