6664531226 has 8 divisors (see below), whose sum is σ = 10016832000. Its totient is φ = 3325587228.

The previous prime is 6664531217. The next prime is 6664531229. The reversal of 6664531226 is 6221354666.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (6664531229) 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, 3337946 + ... + 3339941.

It is an arithmetic number, because the mean of its divisors is an integer number (1252104000).

Almost surely, 2^6664531226 is an apocalyptic number.

6664531226 is a deficient number, since it is larger than the sum of its proper divisors (3352300774).

6664531226 is a wasteful number, since it uses less digits than its factorization.

6664531226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678388.

The product of its digits is 311040, while the sum is 41.

The square root of 6664531226 is about 81636.5801954002. The cubic root of 6664531226 is about 1881.8710836416.

The spelling of 6664531226 in words is "six billion, six hundred sixty-four million, five hundred thirty-one thousand, two hundred twenty-six".