1655116223 has 2 divisors, whose sum is σ = 1655116224. Its totient is φ = 1655116222.

The previous prime is 1655116207. The next prime is 1655116261. The reversal of 1655116223 is 3226115561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1655116223 - 2⁴ = 1655116207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1655116223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1655113223) 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, 827558111 + 827558112.

It is an arithmetic number, because the mean of its divisors is an integer number (827558112).

Almost surely, 2^1655116223 is an apocalyptic number.

1655116223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655116223 is an equidigital number, since it uses as much as digits as its factorization.

1655116223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 1655116223 is about 40683.1196321029. The cubic root of 1655116223 is about 1182.8858368415.

The spelling of 1655116223 in words is "one billion, six hundred fifty-five million, one hundred sixteen thousand, two hundred twenty-three".