168254507023 has 4 divisors (see below), whose sum is σ = 168284790520. Its totient is φ = 168224223528.

The previous prime is 168254507017. The next prime is 168254507089. The reversal of 168254507023 is 320705452861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320705452861 = 107 ⋅2997247223.

It is a cyclic number.

It is not a de Polignac number, because 168254507023 - 2¹³ = 168254498831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168254507093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15133413 + ... + 15144526.

It is an arithmetic number, because the mean of its divisors is an integer number (42071197630).

Almost surely, 2^168254507023 is an apocalyptic number.

168254507023 is a deficient number, since it is larger than the sum of its proper divisors (30283497).

168254507023 is an equidigital number, since it uses as much as digits as its factorization.

168254507023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30283496.

The product of its (nonzero) digits is 403200, while the sum is 43.

Adding to 168254507023 its reverse (320705452861), we get a palindrome (488959959884).

The spelling of 168254507023 in words is "one hundred sixty-eight billion, two hundred fifty-four million, five hundred seven thousand, twenty-three".