6554561851 has 2 divisors, whose sum is σ = 6554561852. Its totient is φ = 6554561850.

The previous prime is 6554561831. The next prime is 6554561857. The reversal of 6554561851 is 1581654556.

6554561851 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6554561851 - 2⁹ = 6554561339 is a prime.

It is not a weakly prime, because it can be changed into another prime (6554561857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277280925 + 3277280926.

It is an arithmetic number, because the mean of its divisors is an integer number (3277280926).

Almost surely, 2^6554561851 is an apocalyptic number.

6554561851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6554561851 is an equidigital number, since it uses as much as digits as its factorization.

6554561851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720000, while the sum is 46.

The square root of 6554561851 is about 80960.2485853397. The cubic root of 6554561851 is about 1871.4628997155.

The spelling of 6554561851 in words is "six billion, five hundred fifty-four million, five hundred sixty-one thousand, eight hundred fifty-one".