6311664 has 60 divisors (see below), whose sum is σ = 18018936. Its totient is φ = 2061696.

The previous prime is 6311659. The next prime is 6311689. The reversal of 6311664 is 4661136.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7219 + ... + 8045.

Almost surely, 2^6311664 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 6311664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9009468).

6311664 is an abundant number, since it is smaller than the sum of its proper divisors (11707272).

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

6311664 is a wasteful number, since it uses less digits than its factorization.

6311664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 885 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 6311664 is about 2512.3025295533. The cubic root of 6311664 is about 184.8053857991.

The spelling of 6311664 in words is "six million, three hundred eleven thousand, six hundred sixty-four".