6636124121000 has 96 divisors (see below), whose sum is σ = 17068550302440. Its totient is φ = 2413136000000.

The previous prime is 6636124120999. The next prime is 6636124121027. The reversal of 6636124121000 is 1214216366.

It can be written as a sum of positive squares in 4 ways, for example, as 2531618303236 + 4104505817764 = 1591106^2 + 2025958^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 27301001 + ... + 27543000.

Almost surely, 2^{6636124121000} is an apocalyptic number.

It is an amenable number.

6636124121000 is an abundant number, since it is smaller than the sum of its proper divisors (10432426181440).

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

6636124121000 is a wasteful number, since it uses less digits than its factorization.

6636124121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54844044 (or 54844019 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 6636124121000 its reverse (1214216366), we get a palindrome (6637338337366).

The spelling of 6636124121000 in words is "six trillion, six hundred thirty-six billion, one hundred twenty-four million, one hundred twenty-one thousand".