6505832940 has 96 divisors (see below), whose sum is σ = 19221027840. Its totient is φ = 1639641600.

The previous prime is 6505832933. The next prime is 6505832941. The reversal of 6505832940 is 492385056.

It is a junction number, because it is equal to n+sod(n) for n = 6505832892 and 6505832901.

It is not an unprimeable number, because it can be changed into a prime (6505832941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484720 + ... + 497960.

It is an arithmetic number, because the mean of its divisors is an integer number (200219040).

Almost surely, 2^6505832940 is an apocalyptic number.

6505832940 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 6505832940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9610513920).

6505832940 is an abundant number, since it is smaller than the sum of its proper divisors (12715194900).

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

6505832940 is a wasteful number, since it uses less digits than its factorization.

6505832940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13703 (or 13701 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 6505832940 is about 80658.7437293689. The cubic root of 6505832940 is about 1866.8136554462.

The spelling of 6505832940 in words is "six billion, five hundred five million, eight hundred thirty-two thousand, nine hundred forty".