655655544923 has 2 divisors, whose sum is σ = 655655544924. Its totient is φ = 655655544922.

The previous prime is 655655544853. The next prime is 655655544941. The reversal of 655655544923 is 329445556556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655655544923 - 2²⁶ = 655588436059 is a prime.

It is not a weakly prime, because it can be changed into another prime (655655544983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327827772461 + 327827772462.

It is an arithmetic number, because the mean of its divisors is an integer number (327827772462).

Almost surely, 2^655655544923 is an apocalyptic number.

655655544923 is a deficient number, since it is larger than the sum of its proper divisors (1).

655655544923 is an equidigital number, since it uses as much as digits as its factorization.

655655544923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200000, while the sum is 59.

The spelling of 655655544923 in words is "six hundred fifty-five billion, six hundred fifty-five million, five hundred forty-four thousand, nine hundred twenty-three".