6601650 has 48 divisors (see below), whose sum is σ = 17864928. Its totient is φ = 1600000.

The previous prime is 6601649. The next prime is 6601691. The reversal of 6601650 is 561066.

It is a self number, because there is not a number n which added to its sum of digits gives 6601650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 351 + ... + 3650.

It is an arithmetic number, because the mean of its divisors is an integer number (372186).

Almost surely, 2^6601650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6601650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8932464).

6601650 is an abundant number, since it is smaller than the sum of its proper divisors (11263278).

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

6601650 is a wasteful number, since it uses less digits than its factorization.

6601650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027 (or 4022 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 6601650 is about 2569.3676264793. The cubic root of 6601650 is about 187.5933757130.

It can be divided in two parts, 66016 and 50, that added together give a palindrome (66066).

The spelling of 6601650 in words is "six million, six hundred one thousand, six hundred fifty".