2201644550636 has 48 divisors (see below), whose sum is σ = 4018717667328. Its totient is φ = 1054196683200.

The previous prime is 2201644550561. The next prime is 2201644550653. The reversal of 2201644550636 is 6360554461022.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 17575721 + ... + 17700543.

It is an arithmetic number, because the mean of its divisors is an integer number (83723284736).

Almost surely, 2^{2201644550636} is an apocalyptic number.

It is an amenable number.

2201644550636 is a deficient number, since it is larger than the sum of its proper divisors (1817073116692).

2201644550636 is a wasteful number, since it uses less digits than its factorization.

2201644550636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126342 (or 126340 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 2201644550636 in words is "two trillion, two hundred one billion, six hundred forty-four million, five hundred fifty thousand, six hundred thirty-six".