6211660 has 48 divisors (see below), whose sum is σ = 16059456. Its totient is φ = 1965312.

The previous prime is 6211657. The next prime is 6211669. The reversal of 6211660 is 661126.

It is not an unprimeable number, because it can be changed into a prime (6211669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114 + ... + 3526.

It is an arithmetic number, because the mean of its divisors is an integer number (334572).

Almost surely, 2^6211660 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 6211660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8029728).

6211660 is an abundant number, since it is smaller than the sum of its proper divisors (9847796).

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

6211660 is a wasteful number, since it uses less digits than its factorization.

6211660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6211660 is about 2492.3202041471. The cubic root of 6211660 is about 183.8241467311.

Adding to 6211660 its reverse (661126), we get a palindrome (6872786).

The spelling of 6211660 in words is "six million, two hundred eleven thousand, six hundred sixty".