163042351623 has 12 divisors (see below), whose sum is σ = 237065260848. Its totient is φ = 107975066400.

The previous prime is 163042351621. The next prime is 163042351627. The reversal of 163042351623 is 326153240361.

163042351623 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 4 + 23 + 5 + 1 + 623 = 666.

163042351623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163042351623 - 2¹ = 163042351621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163042351621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59984790 + ... + 59987507.

It is an arithmetic number, because the mean of its divisors is an integer number (19755438404).

Almost surely, 2^163042351623 is an apocalyptic number.

163042351623 is a deficient number, since it is larger than the sum of its proper divisors (74022909225).

163042351623 is a wasteful number, since it uses less digits than its factorization.

163042351623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119972454 (or 119972451 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 163042351623 its reverse (326153240361), we get a palindrome (489195591984).

The spelling of 163042351623 in words is "one hundred sixty-three billion, forty-two million, three hundred fifty-one thousand, six hundred twenty-three".