6661592 has 32 divisors (see below), whose sum is σ = 14584320. Its totient is φ = 2793120.

The previous prime is 6661583. The next prime is 6661597. The reversal of 6661592 is 2951666.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367 + ... + 3897.

It is an arithmetic number, because the mean of its divisors is an integer number (455760).

Almost surely, 2^6661592 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 6661592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7292160).

6661592 is an abundant number, since it is smaller than the sum of its proper divisors (7922728).

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

6661592 is a wasteful number, since it uses less digits than its factorization.

6661592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2587 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 6661592 is about 2581.0060054173. The cubic root of 6661592 is about 188.1594392125.

The spelling of 6661592 in words is "six million, six hundred sixty-one thousand, five hundred ninety-two".