15168000138 has 16 divisors (see below), whose sum is σ = 30358876800. Its totient is φ = 5052187296.

The previous prime is 15168000131. The next prime is 15168000139. The reversal of 15168000138 is 83100086151.

It is a junction number, because it is equal to n+sod(n) for n = 15168000099 and 15168000108.

It is not an unprimeable number, because it can be changed into a prime (15168000131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944563 + ... + 960486.

It is an arithmetic number, because the mean of its divisors is an integer number (1897429800).

Almost surely, 2^15168000138 is an apocalyptic number.

15168000138 is an abundant number, since it is smaller than the sum of its proper divisors (15190876662).

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

15168000138 is a wasteful number, since it uses less digits than its factorization.

15168000138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906381.

The product of its (nonzero) digits is 5760, while the sum is 33.

Adding to 15168000138 its reverse (83100086151), we get a palindrome (98268086289).

The spelling of 15168000138 in words is "fifteen billion, one hundred sixty-eight million, one hundred thirty-eight", and thus it is an aban number.