6624866461 has 8 divisors (see below), whose sum is σ = 6640776920. Its totient is φ = 6608976192.

The previous prime is 6624866441. The next prime is 6624866471. The reversal of 6624866461 is 1646684266.

It can be written as a sum of positive squares in 4 ways, for example, as 6126192900 + 498673561 = 78270^2 + 22331^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6624866461 - 2⁷ = 6624866333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6624866441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797035 + ... + 805303.

It is an arithmetic number, because the mean of its divisors is an integer number (830097115).

Almost surely, 2^6624866461 is an apocalyptic number.

It is an amenable number.

6624866461 is a deficient number, since it is larger than the sum of its proper divisors (15910459).

6624866461 is a wasteful number, since it uses less digits than its factorization.

6624866461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095.

The product of its digits is 1990656, while the sum is 49.

The square root of 6624866461 is about 81393.2826528086. The cubic root of 6624866461 is about 1878.1302578901.

The spelling of 6624866461 in words is "six billion, six hundred twenty-four million, eight hundred sixty-six thousand, four hundred sixty-one".