6644708885552 has 80 divisors (see below), whose sum is σ = 13066611228000. Its totient is φ = 3273073090560.

The previous prime is 6644708885527. The next prime is 6644708885593. The reversal of 6644708885552 is 2555888074466.

It is a super-3 number, since 3×6644708885552³ (a number of 39 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708613088 + ... + 708622464.

It is an arithmetic number, because the mean of its divisors is an integer number (163332640350).

Almost surely, 2^{6644708885552} is an apocalyptic number.

It is an amenable number.

6644708885552 is a deficient number, since it is larger than the sum of its proper divisors (6421902342448).

6644708885552 is a wasteful number, since it uses less digits than its factorization.

6644708885552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11934 (or 11928 counting only the distinct ones).

The product of its (nonzero) digits is 516096000, while the sum is 68.

The spelling of 6644708885552 in words is "six trillion, six hundred forty-four billion, seven hundred eight million, eight hundred eighty-five thousand, five hundred fifty-two".