6625644448247 has 16 divisors (see below), whose sum is σ = 7294917801600. Its totient is φ = 5967537654240.

The previous prime is 6625644448237. The next prime is 6625644448289. The reversal of 6625644448247 is 7428444465266.

It is a cyclic number.

It is not a de Polignac number, because 6625644448247 - 2⁶ = 6625644448183 is a prime.

It is a super-2 number, since 2×6625644448247² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6625644448247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6625644448237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13995704 + ... + 14461362.

It is an arithmetic number, because the mean of its divisors is an integer number (455932362600).

Almost surely, 2^{6625644448247} is an apocalyptic number.

6625644448247 is a deficient number, since it is larger than the sum of its proper divisors (669273353353).

6625644448247 is a wasteful number, since it uses less digits than its factorization.

6625644448247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477646.

The product of its digits is 247726080, while the sum is 62.

The spelling of 6625644448247 in words is "six trillion, six hundred twenty-five billion, six hundred forty-four million, four hundred forty-eight thousand, two hundred forty-seven".