6653445456 has 80 divisors (see below), whose sum is σ = 19823830400. Its totient is φ = 1883533824.

The previous prime is 6653445433. The next prime is 6653445473. The reversal of 6653445456 is 6545443566.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54211 + ... + 127458.

It is an arithmetic number, because the mean of its divisors is an integer number (247797880).

Almost surely, 2^6653445456 is an apocalyptic number.

It is an amenable number.

6653445456 is an abundant number, since it is smaller than the sum of its proper divisors (13170384944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6653445456 is a wasteful number, since it uses less digits than its factorization.

6653445456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181796 (or 181790 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 48.

The square root of 6653445456 is about 81568.6548620241. The cubic root of 6653445456 is about 1880.8270708290.

The spelling of 6653445456 in words is "six billion, six hundred fifty-three million, four hundred forty-five thousand, four hundred fifty-six".