18168230153 has 2 divisors, whose sum is σ = 18168230154. Its totient is φ = 18168230152.

The previous prime is 18168230147. The next prime is 18168230159. The reversal of 18168230153 is 35103286181.

It is a balanced prime because it is at equal distance from previous prime (18168230147) and next prime (18168230159).

It can be written as a sum of positive squares in only one way, i.e., 15547097344 + 2621132809 = 124688^2 + 51197^2 .

It is an emirp because it is prime and its reverse (35103286181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18168230153 - 2¹⁸ = 18167968009 is a prime.

It is not a weakly prime, because it can be changed into another prime (18168230159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9084115076 + 9084115077.

It is an arithmetic number, because the mean of its divisors is an integer number (9084115077).

Almost surely, 2^18168230153 is an apocalyptic number.

It is an amenable number.

18168230153 is a deficient number, since it is larger than the sum of its proper divisors (1).

18168230153 is an equidigital number, since it uses as much as digits as its factorization.

18168230153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 18168230153 in words is "eighteen billion, one hundred sixty-eight million, two hundred thirty thousand, one hundred fifty-three".