6664068 has 36 divisors (see below), whose sum is σ = 17837820. Its totient is φ = 2090496.

The previous prime is 6664027. The next prime is 6664069. The reversal of 6664068 is 8604666.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 4359744 = 1518^2 + 2088^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6664069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4833 + ... + 6056.

It is an arithmetic number, because the mean of its divisors is an integer number (495495).

Almost surely, 2^6664068 is an apocalyptic number.

6664068 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6664068 is an abundant number, since it is smaller than the sum of its proper divisors (11173752).

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

6664068 is a wasteful number, since it uses less digits than its factorization.

6664068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10916 (or 10911 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 6664068 is about 2581.4856187862. The cubic root of 6664068 is about 188.1827482085.

The spelling of 6664068 in words is "six million, six hundred sixty-four thousand, sixty-eight".