6624403445 has 16 divisors (see below), whose sum is σ = 8970981120. Its totient is φ = 4651617600.

The previous prime is 6624403441. The next prime is 6624403451. The reversal of 6624403445 is 5443044266.

It is not a de Polignac number, because 6624403445 - 2² = 6624403441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6624403399 and 6624403408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6624403441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2075021 + ... + 2078210.

It is an arithmetic number, because the mean of its divisors is an integer number (560686320).

Almost surely, 2^6624403445 is an apocalyptic number.

It is an amenable number.

6624403445 is a deficient number, since it is larger than the sum of its proper divisors (2346577675).

6624403445 is a wasteful number, since it uses less digits than its factorization.

6624403445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153276.

The product of its (nonzero) digits is 276480, while the sum is 38.

The square root of 6624403445 is about 81390.4382897647. The cubic root of 6624403445 is about 1878.0865023103.

The spelling of 6624403445 in words is "six billion, six hundred twenty-four million, four hundred three thousand, four hundred forty-five".