6655456729 has 2 divisors, whose sum is σ = 6655456730. Its totient is φ = 6655456728.

The previous prime is 6655456679. The next prime is 6655456771. The reversal of 6655456729 is 9276545566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5662261504 + 993195225 = 75248^2 + 31515^2 .

It is a cyclic number.

It is not a de Polignac number, because 6655456729 - 2¹⁷ = 6655325657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6655456729.

It is not a weakly prime, because it can be changed into another prime (6655456229) 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 as a sum of consecutive naturals, namely, 3327728364 + 3327728365.

It is an arithmetic number, because the mean of its divisors is an integer number (3327728365).

Almost surely, 2^6655456729 is an apocalyptic number.

It is an amenable number.

6655456729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6655456729 is an equidigital number, since it uses as much as digits as its factorization.

6655456729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 55.

The square root of 6655456729 is about 81580.9826430155. The cubic root of 6655456729 is about 1881.0165704209.

The spelling of 6655456729 in words is "six billion, six hundred fifty-five million, four hundred fifty-six thousand, seven hundred twenty-nine".