6571541340 has 576 divisors, whose sum is σ = 25815121920. Its totient is φ = 1375605504.

The previous prime is 6571541321. The next prime is 6571541357. The reversal of 6571541340 is 431451756.

6571541340 is a `hidden beast` number, since 6 + 5 + 71 + 541 + 3 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6571541295 and 6571541304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 51744357 + ... + 51744483.

It is an arithmetic number, because the mean of its divisors is an integer number (44817920).

Almost surely, 2^6571541340 is an apocalyptic number.

6571541340 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 6571541340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12907560960).

6571541340 is an abundant number, since it is smaller than the sum of its proper divisors (19243580580).

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

6571541340 is a wasteful number, since it uses less digits than its factorization.

6571541340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 6571541340 is about 81065.0438845252. The cubic root of 6571541340 is about 1873.0775046800.

The spelling of 6571541340 in words is "six billion, five hundred seventy-one million, five hundred forty-one thousand, three hundred forty".