6541533340 has 24 divisors (see below), whose sum is σ = 13742386560. Its totient is φ = 2615629248.

The previous prime is 6541533331. The next prime is 6541533359. The reversal of 6541533340 is 433351456.

It is a junction number, because it is equal to n+sod(n) for n = 6541533296 and 6541533305.

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 7 ways as a sum of consecutive naturals, for example, 5767 + ... + 114526.

It is an arithmetic number, because the mean of its divisors is an integer number (572599440).

Almost surely, 2^6541533340 is an apocalyptic number.

It is an amenable number.

6541533340 is an abundant number, since it is smaller than the sum of its proper divisors (7200853220).

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

6541533340 is a wasteful number, since it uses less digits than its factorization.

6541533340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123021 (or 123019 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 6541533340 is about 80879.7461667629. The cubic root of 6541533340 is about 1870.2221075084. Note that the first 3 decimals are identical.

Adding to 6541533340 its reverse (433351456), we get a palindrome (6974884796).

The spelling of 6541533340 in words is "six billion, five hundred forty-one million, five hundred thirty-three thousand, three hundred forty".