6611664 has 20 divisors (see below), whose sum is σ = 17080256. Its totient is φ = 2203872.

The previous prime is 6611663. The next prime is 6611699. The reversal of 6611664 is 4661166.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6611663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68824 + ... + 68919.

Almost surely, 2^6611664 is an apocalyptic number.

It is an amenable number.

6611664 is an abundant number, since it is smaller than the sum of its proper divisors (10468592).

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

6611664 is a wasteful number, since it uses less digits than its factorization.

6611664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137754 (or 137748 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 6611664 is about 2571.3156165667. The cubic root of 6611664 is about 187.6881808504.

The spelling of 6611664 in words is "six million, six hundred eleven thousand, six hundred sixty-four".