15535113132 has 48 divisors (see below), whose sum is σ = 45193059072. Its totient is φ = 4035094080.

The previous prime is 15535113103. The next prime is 15535113133. The reversal of 15535113132 is 23131153551.

It is a self number, because there is not a number n which added to its sum of digits gives 15535113132.

It is not an unprimeable number, because it can be changed into a prime (15535113133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8405523 + ... + 8407370.

It is an arithmetic number, because the mean of its divisors is an integer number (941522064).

Almost surely, 2^15535113132 is an apocalyptic number.

15535113132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15535113132 is an abundant number, since it is smaller than the sum of its proper divisors (29657945940).

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

15535113132 is a wasteful number, since it uses less digits than its factorization.

15535113132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16812918 (or 16812916 counting only the distinct ones).

The product of its digits is 6750, while the sum is 30.

Adding to 15535113132 its reverse (23131153551), we get a palindrome (38666266683).

The spelling of 15535113132 in words is "fifteen billion, five hundred thirty-five million, one hundred thirteen thousand, one hundred thirty-two".