13121167158 has 60 divisors (see below), whose sum is σ = 32316997020. Its totient is φ = 3976105320.

The previous prime is 13121167151. The next prime is 13121167207. The reversal of 13121167158 is 85176112131.

It is a happy number.

13121167158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121167151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 315088 + ... + 354291.

It is an arithmetic number, because the mean of its divisors is an integer number (538616617).

Almost surely, 2^13121167158 is an apocalyptic number.

13121167158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13121167158 is an abundant number, since it is smaller than the sum of its proper divisors (19195829862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121167158 is a wasteful number, since it uses less digits than its factorization.

13121167158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669415 (or 669395 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

Adding to 13121167158 its reverse (85176112131), we get a palindrome (98297279289).

The spelling of 13121167158 in words is "thirteen billion, one hundred twenty-one million, one hundred sixty-seven thousand, one hundred fifty-eight".