6557117260 has 48 divisors (see below), whose sum is σ = 14661531360. Its totient is φ = 2454748160.

The previous prime is 6557117213. The next prime is 6557117261. The reversal of 6557117260 is 627117556.

It is a happy number.

It is a super-2 number, since 2×6557117260² = 85991573522779815200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6557117261) 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 15 ways as a sum of consecutive naturals, for example, 6990 + ... + 114730.

It is an arithmetic number, because the mean of its divisors is an integer number (305448570).

Almost surely, 2^6557117260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6557117260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7330765680).

6557117260 is an abundant number, since it is smaller than the sum of its proper divisors (8104414100).

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

6557117260 is a wasteful number, since it uses less digits than its factorization.

6557117260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107946 (or 107944 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 6557117260 is about 80976.0289221446. The cubic root of 6557117260 is about 1871.7060754805.

The spelling of 6557117260 in words is "six billion, five hundred fifty-seven million, one hundred seventeen thousand, two hundred sixty".