6655680359 has 2 divisors, whose sum is σ = 6655680360. Its totient is φ = 6655680358.

The previous prime is 6655680341. The next prime is 6655680457. The reversal of 6655680359 is 9530865566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6655680359 - 2²⁰ = 6654631783 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6655680359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6655688359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3327840179 + 3327840180.

It is an arithmetic number, because the mean of its divisors is an integer number (3327840180).

Almost surely, 2^6655680359 is an apocalyptic number.

6655680359 is a deficient number, since it is larger than the sum of its proper divisors (1).

6655680359 is an equidigital number, since it uses as much as digits as its factorization.

6655680359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The square root of 6655680359 is about 81582.3532327917. The cubic root of 6655680359 is about 1881.0376381973.

The spelling of 6655680359 in words is "six billion, six hundred fifty-five million, six hundred eighty thousand, three hundred fifty-nine".