6636874201252 has 24 divisors (see below), whose sum is σ = 11651253639480. Its totient is φ = 3307954652160.

The previous prime is 6636874201247. The next prime is 6636874201273. The reversal of 6636874201252 is 2521024786366.

It can be written as a sum of positive squares in 4 ways, for example, as 1810838514276 + 4826035686976 = 1345674^2 + 2196824^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6636874201252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383802 + ... + 3897262.

It is an arithmetic number, because the mean of its divisors is an integer number (485468901645).

Almost surely, 2^{6636874201252} is an apocalyptic number.

It is an amenable number.

6636874201252 is a deficient number, since it is larger than the sum of its proper divisors (5014379438228).

6636874201252 is a wasteful number, since it uses less digits than its factorization.

6636874201252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515551 (or 2515549 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 6636874201252 in words is "six trillion, six hundred thirty-six billion, eight hundred seventy-four million, two hundred one thousand, two hundred fifty-two".