6665562441 has 32 divisors (see below), whose sum is σ = 10021968000. Its totient is φ = 4377996864.

The previous prime is 6665562439. The next prime is 6665562457. The reversal of 6665562441 is 1442655666.

It is not a de Polignac number, because 6665562441 - 2¹ = 6665562439 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6665562401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520471 + ... + 533123.

It is an arithmetic number, because the mean of its divisors is an integer number (313186500).

Almost surely, 2^6665562441 is an apocalyptic number.

It is an amenable number.

6665562441 is a deficient number, since it is larger than the sum of its proper divisors (3356405559).

6665562441 is a wasteful number, since it uses less digits than its factorization.

6665562441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950 (or 12944 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 6665562441 is about 81642.8958391359. The cubic root of 6665562441 is about 1881.9681404108.

The spelling of 6665562441 in words is "six billion, six hundred sixty-five million, five hundred sixty-two thousand, four hundred forty-one".