6557536320 has 112 divisors (see below), whose sum is σ = 20857098240. Its totient is φ = 1745575936.

The previous prime is 6557536313. The next prime is 6557536369. The reversal of 6557536320 is 236357556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563521 + ... + 575039.

Almost surely, 2^6557536320 is an apocalyptic number.

6557536320 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 6557536320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10428549120).

6557536320 is an abundant number, since it is smaller than the sum of its proper divisors (14299561920).

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

6557536320 is a wasteful number, since it uses less digits than its factorization.

6557536320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132 (or 12122 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 42.

The square root of 6557536320 is about 80978.6164366865. The cubic root of 6557536320 is about 1871.7459476992.

The spelling of 6557536320 in words is "six billion, five hundred fifty-seven million, five hundred thirty-six thousand, three hundred twenty".