6616764 has 162 divisors, whose sum is σ = 22075872. Its totient is φ = 1663200.

The previous prime is 6616763. The next prime is 6616777. The reversal of 6616764 is 4676166.

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

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

Its product of digits (36288) is a multiple of the sum of its prime divisors (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616763) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 213429 + ... + 213459.

Almost surely, 2^6616764 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 6616764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11037936).

6616764 is an abundant number, since it is smaller than the sum of its proper divisors (15459108).

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

6616764 is a wasteful number, since it uses less digits than its factorization.

6616764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 54 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 6616764 is about 2572.3071356275. The cubic root of 6616764 is about 187.7364270866.

The spelling of 6616764 in words is "six million, six hundred sixteen thousand, seven hundred sixty-four".