6601140 has 216 divisors, whose sum is σ = 25579008. Its totient is φ = 1347840.

The previous prime is 6601129. The next prime is 6601157. The reversal of 6601140 is 411066.

6601140 is a `hidden beast` number, since 660 + 1 + 1 + 4 + 0 = 666.

6601140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 212925 + ... + 212955.

Almost surely, 2^6601140 is an apocalyptic number.

6601140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6601140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12789504).

6601140 is an abundant number, since it is smaller than the sum of its proper divisors (18977868).

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

6601140 is a wasteful number, since it uses less digits than its factorization.

6601140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 6601140 is about 2569.2683783521. The cubic root of 6601140 is about 187.5885448457.

The spelling of 6601140 in words is "six million, six hundred one thousand, one hundred forty".