6664325624 has 64 divisors (see below), whose sum is σ = 14263050240. Its totient is φ = 2889631360.

The previous prime is 6664325621. The next prime is 6664325641. The reversal of 6664325624 is 4265234666.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664325621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770894 + ... + 779490.

It is an arithmetic number, because the mean of its divisors is an integer number (222860160).

Almost surely, 2^6664325624 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 6664325624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7131525120).

6664325624 is an abundant number, since it is smaller than the sum of its proper divisors (7598724616).

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

6664325624 is a wasteful number, since it uses less digits than its factorization.

6664325624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020 (or 9016 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 44.

The square root of 6664325624 is about 81635.3209340173. The cubic root of 6664325624 is about 1881.8517314209.

The spelling of 6664325624 in words is "six billion, six hundred sixty-four million, three hundred twenty-five thousand, six hundred twenty-four".