15540135112 has 64 divisors (see below), whose sum is σ = 31848480000. Its totient is φ = 7080514560.

The previous prime is 15540135089. The next prime is 15540135119. The reversal of 15540135112 is 21153104551.

It is not an unprimeable number, because it can be changed into a prime (15540135119) 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, 1188064 + ... + 1201072.

It is an arithmetic number, because the mean of its divisors is an integer number (497632500).

Almost surely, 2^15540135112 is an apocalyptic number.

It is an amenable number.

15540135112 is an abundant number, since it is smaller than the sum of its proper divisors (16308344888).

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

15540135112 is a wasteful number, since it uses less digits than its factorization.

15540135112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13334 (or 13330 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 15540135112 its reverse (21153104551), we get a palindrome (36693239663).

The spelling of 15540135112 in words is "fifteen billion, five hundred forty million, one hundred thirty-five thousand, one hundred twelve".