6554540660 has 24 divisors (see below), whose sum is σ = 13834414440. Its totient is φ = 2608505984.

The previous prime is 6554540659. The next prime is 6554540669. The reversal of 6554540660 is 660454556.

It can be written as a sum of positive squares in 4 ways, for example, as 1103967076 + 5450573584 = 33226^2 + 73828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6554540669) by changing a digit.

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, 827855 + ... + 835734.

It is an arithmetic number, because the mean of its divisors is an integer number (576433935).

Almost surely, 2^6554540660 is an apocalyptic number.

It is an amenable number.

6554540660 is an abundant number, since it is smaller than the sum of its proper divisors (7279873780).

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

6554540660 is a wasteful number, since it uses less digits than its factorization.

6554540660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663795 (or 1663793 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The square root of 6554540660 is about 80960.1177123650. The cubic root of 6554540660 is about 1871.4608828905.

The spelling of 6554540660 in words is "six billion, five hundred fifty-four million, five hundred forty thousand, six hundred sixty".