6663563041212 has 96 divisors (see below), whose sum is σ = 21538789655040. Its totient is φ = 1730795592960.

The previous prime is 6663563041193. The next prime is 6663563041253. The reversal of 6663563041212 is 2121403653666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400638813 + ... + 400655444.

It is an arithmetic number, because the mean of its divisors is an integer number (224362392240).

Almost surely, 2^{6663563041212} is an apocalyptic number.

It is an amenable number.

6663563041212 is an abundant number, since it is smaller than the sum of its proper divisors (14875226613828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6663563041212 is a wasteful number, since it uses less digits than its factorization.

6663563041212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801294288 (or 801294280 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

Adding to 6663563041212 its reverse (2121403653666), we get a palindrome (8784966694878).

The spelling of 6663563041212 in words is "six trillion, six hundred sixty-three billion, five hundred sixty-three million, forty-one thousand, two hundred twelve".