163442154213 has 20 divisors (see below), whose sum is σ = 262935433068. Its totient is φ = 100579786560.

The previous prime is 163442154167. The next prime is 163442154229. The reversal of 163442154213 is 312451244361.

163442154213 is a `hidden beast` number, since 1 + 63 + 4 + 42 + 1 + 542 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37815858369 + 125626295844 = 194463^2 + 354438^2 .

It is not a de Polignac number, because 163442154213 - 2²¹ = 163440057061 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163442054213) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77606808 + ... + 77608913.

Almost surely, 2^163442154213 is an apocalyptic number.

163442154213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163442154213 is a deficient number, since it is larger than the sum of its proper divisors (99493278855).

163442154213 is a wasteful number, since it uses less digits than its factorization.

163442154213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155215746 (or 155215737 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

Adding to 163442154213 its reverse (312451244361), we get a palindrome (475893398574).

The spelling of 163442154213 in words is "one hundred sixty-three billion, four hundred forty-two million, one hundred fifty-four thousand, two hundred thirteen".