6616140 has 24 divisors (see below), whose sum is σ = 18525360. Its totient is φ = 1764288.

The previous prime is 6616139. The next prime is 6616151. The reversal of 6616140 is 416166.

It is a self number, because there is not a number n which added to its sum of digits gives 6616140.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55075 + ... + 55194.

It is an arithmetic number, because the mean of its divisors is an integer number (771890).

Almost surely, 2^6616140 is an apocalyptic number.

6616140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6616140 is an abundant number, since it is smaller than the sum of its proper divisors (11909220).

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

6616140 is a wasteful number, since it uses less digits than its factorization.

6616140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110281 (or 110279 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 6616140 is about 2572.1858408754. The cubic root of 6616140 is about 187.7305253491.

The spelling of 6616140 in words is "six million, six hundred sixteen thousand, one hundred forty".