6555188851 has 2 divisors, whose sum is σ = 6555188852. Its totient is φ = 6555188850.

The previous prime is 6555188839. The next prime is 6555188881. The reversal of 6555188851 is 1588815556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6555188851 - 2⁵ = 6555188819 is a prime.

It is not a weakly prime, because it can be changed into another prime (6555188821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277594425 + 3277594426.

It is an arithmetic number, because the mean of its divisors is an integer number (3277594426).

Almost surely, 2^6555188851 is an apocalyptic number.

6555188851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555188851 is an equidigital number, since it uses as much as digits as its factorization.

6555188851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920000, while the sum is 52.

The square root of 6555188851 is about 80964.1207634592. The cubic root of 6555188851 is about 1871.5225716331.

The spelling of 6555188851 in words is "six billion, five hundred fifty-five million, one hundred eighty-eight thousand, eight hundred fifty-one".