655120667723 has 2 divisors, whose sum is σ = 655120667724. Its totient is φ = 655120667722.

The previous prime is 655120667699. The next prime is 655120667767. The reversal of 655120667723 is 327766021556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655120667723 - 2¹² = 655120663627 is a prime.

It is not a weakly prime, because it can be changed into another prime (655120667423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327560333861 + 327560333862.

It is an arithmetic number, because the mean of its divisors is an integer number (327560333862).

Almost surely, 2^655120667723 is an apocalyptic number.

655120667723 is a deficient number, since it is larger than the sum of its proper divisors (1).

655120667723 is an equidigital number, since it uses as much as digits as its factorization.

655120667723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 655120667723 in words is "six hundred fifty-five billion, one hundred twenty million, six hundred sixty-seven thousand, seven hundred twenty-three".