6664241547 has 40 divisors (see below), whose sum is σ = 10149967872. Its totient is φ = 4356601200.

The previous prime is 6664241543. The next prime is 6664241581. The reversal of 6664241547 is 7451424666.

It is not a de Polignac number, because 6664241547 - 2² = 6664241543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6664241543) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1095408 + ... + 1101474.

Almost surely, 2^6664241547 is an apocalyptic number.

6664241547 is a deficient number, since it is larger than the sum of its proper divisors (3485726325).

6664241547 is a wasteful number, since it uses less digits than its factorization.

6664241547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341 (or 6332 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 6664241547 is about 81634.8059775976. The cubic root of 6664241547 is about 1881.8438175863.

The spelling of 6664241547 in words is "six billion, six hundred sixty-four million, two hundred forty-one thousand, five hundred forty-seven".