168455388053 has 2 divisors, whose sum is σ = 168455388054. Its totient is φ = 168455388052.

The previous prime is 168455388037. The next prime is 168455388103. The reversal of 168455388053 is 350883554861.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115095312049 + 53360076004 = 339257^2 + 230998^2 .

It is a cyclic number.

It is not a de Polignac number, because 168455388053 - 2⁴ = 168455388037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168455388053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168455388853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84227694026 + 84227694027.

It is an arithmetic number, because the mean of its divisors is an integer number (84227694027).

Almost surely, 2^168455388053 is an apocalyptic number.

It is an amenable number.

168455388053 is a deficient number, since it is larger than the sum of its proper divisors (1).

168455388053 is an equidigital number, since it uses as much as digits as its factorization.

168455388053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 168455388053 in words is "one hundred sixty-eight billion, four hundred fifty-five million, three hundred eighty-eight thousand, fifty-three".