15135216312 has 16 divisors (see below), whose sum is σ = 37838040840. Its totient is φ = 5045072096.

The previous prime is 15135216293. The next prime is 15135216323. The reversal of 15135216312 is 21361253151.

It is a super-2 number, since 2×15135216312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15135216312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315316983 + ... + 315317030.

Almost surely, 2^15135216312 is an apocalyptic number.

15135216312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15135216312 is an abundant number, since it is smaller than the sum of its proper divisors (22702824528).

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

15135216312 is a wasteful number, since it uses less digits than its factorization.

15135216312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630634022 (or 630634018 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

Adding to 15135216312 its reverse (21361253151), we get a palindrome (36496469463).

The spelling of 15135216312 in words is "fifteen billion, one hundred thirty-five million, two hundred sixteen thousand, three hundred twelve".