6663412801 has 8 divisors (see below), whose sum is σ = 6704703720. Its totient is φ = 6622154112.

The previous prime is 6663412799. The next prime is 6663412813. The reversal of 6663412801 is 1082143666.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45427600 + 6617985201 = 6740^2 + 81351^2 .

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 6663412801 - 2¹ = 6663412799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6663412201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507151 + ... + 520123.

It is an arithmetic number, because the mean of its divisors is an integer number (838087965).

Almost surely, 2^6663412801 is an apocalyptic number.

It is an amenable number.

6663412801 is a deficient number, since it is larger than the sum of its proper divisors (41290919).

6663412801 is a wasteful number, since it uses less digits than its factorization.

6663412801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16115.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 6663412801 is about 81629.7298843993. The cubic root of 6663412801 is about 1881.7658074492.

The spelling of 6663412801 in words is "six billion, six hundred sixty-three million, four hundred twelve thousand, eight hundred one".