6557061181 has 8 divisors (see below), whose sum is σ = 7209483264. Its totient is φ = 5914026720.

The previous prime is 6557061179. The next prime is 6557061241. The reversal of 6557061181 is 1811607556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6557061181 - 2¹ = 6557061179 is a prime.

It is a super-2 number, since 2×6557061181² = 85990102662754229522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6557061151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2345440 + ... + 2348233.

It is an arithmetic number, because the mean of its divisors is an integer number (901185408).

Almost surely, 2^6557061181 is an apocalyptic number.

It is an amenable number.

6557061181 is a deficient number, since it is larger than the sum of its proper divisors (652422083).

6557061181 is a wasteful number, since it uses less digits than its factorization.

6557061181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693811.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 6557061181 is about 80975.6826522630. The cubic root of 6557061181 is about 1871.7007396141.

The spelling of 6557061181 in words is "six billion, five hundred fifty-seven million, sixty-one thousand, one hundred eighty-one".