6555760861 has 8 divisors (see below), whose sum is σ = 7067290104. Its totient is φ = 6045265920.

The previous prime is 6555760843. The next prime is 6555760873. The reversal of 6555760861 is 1680675556.

It can be written as a sum of positive squares in 4 ways, for example, as 184688100 + 6371072761 = 13590^2 + 79819^2 .

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 6555760861 - 2¹⁹ = 6555236573 is a prime.

It is a super-2 number, since 2×6555760861² = 85956000933238922642, 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 (6555760801) 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, 245380 + ... + 270781.

It is an arithmetic number, because the mean of its divisors is an integer number (883411263).

Almost surely, 2^6555760861 is an apocalyptic number.

It is an amenable number.

6555760861 is a deficient number, since it is larger than the sum of its proper divisors (511529243).

6555760861 is a wasteful number, since it uses less digits than its factorization.

6555760861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517151.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The square root of 6555760861 is about 80967.6531770558. The cubic root of 6555760861 is about 1871.5770068047.

The spelling of 6555760861 in words is "six billion, five hundred fifty-five million, seven hundred sixty thousand, eight hundred sixty-one".