15116331432 has 128 divisors (see below), whose sum is σ = 39872448000. Its totient is φ = 4768727040.

The previous prime is 15116331421. The next prime is 15116331437. The reversal of 15116331432 is 23413361151.

It is a self number, because there is not a number n which added to its sum of digits gives 15116331432.

It is not an unprimeable number, because it can be changed into a prime (15116331437) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19656744 + ... + 19657512.

It is an arithmetic number, because the mean of its divisors is an integer number (311503500).

Almost surely, 2^15116331432 is an apocalyptic number.

15116331432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15116331432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19936224000).

15116331432 is an abundant number, since it is smaller than the sum of its proper divisors (24756116568).

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

15116331432 is a wasteful number, since it uses less digits than its factorization.

15116331432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1327 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

Adding to 15116331432 its reverse (23413361151), we get a palindrome (38529692583).

The spelling of 15116331432 in words is "fifteen billion, one hundred sixteen million, three hundred thirty-one thousand, four hundred thirty-two".