655620258023 has 2 divisors, whose sum is σ = 655620258024. Its totient is φ = 655620258022.

The previous prime is 655620258019. The next prime is 655620258047. The reversal of 655620258023 is 320852026556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655620258023 - 2² = 655620258019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655620258523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327810129011 + 327810129012.

It is an arithmetic number, because the mean of its divisors is an integer number (327810129012).

Almost surely, 2^655620258023 is an apocalyptic number.

655620258023 is a deficient number, since it is larger than the sum of its proper divisors (1).

655620258023 is an equidigital number, since it uses as much as digits as its factorization.

655620258023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 655620258023 in words is "six hundred fifty-five billion, six hundred twenty million, two hundred fifty-eight thousand, twenty-three".