6646504424 has 64 divisors (see below), whose sum is σ = 14628297600. Its totient is φ = 2771712000.

The previous prime is 6646504421. The next prime is 6646504441. The reversal of 6646504424 is 4244056466.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (6646504421) 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, 917087 + ... + 924305.

It is an arithmetic number, because the mean of its divisors is an integer number (228567150).

Almost surely, 2^6646504424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6646504424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7314148800).

6646504424 is an abundant number, since it is smaller than the sum of its proper divisors (7981793176).

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

6646504424 is a wasteful number, since it uses less digits than its factorization.

6646504424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7674 (or 7670 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

The square root of 6646504424 is about 81526.0965826281. The cubic root of 6646504424 is about 1880.1728021334.

The spelling of 6646504424 in words is "six billion, six hundred forty-six million, five hundred four thousand, four hundred twenty-four".