6661141760 has 432 divisors, whose sum is σ = 20360398464. Its totient is φ = 2043445248.

The previous prime is 6661141723. The next prime is 6661141769. The reversal of 6661141760 is 671411666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661141769) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80254679 + ... + 80254761.

It is an arithmetic number, because the mean of its divisors is an integer number (47130552).

Almost surely, 2^6661141760 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 6661141760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10180199232).

6661141760 is an abundant number, since it is smaller than the sum of its proper divisors (13699256704).

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

6661141760 is a wasteful number, since it uses less digits than its factorization.

6661141760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 6661141760 is about 81615.8180746845. The cubic root of 6661141760 is about 1881.5520004492.

The spelling of 6661141760 in words is "six billion, six hundred sixty-one million, one hundred forty-one thousand, seven hundred sixty".