15725140112 has 80 divisors (see below), whose sum is σ = 34755775488. Its totient is φ = 6822541440.

The previous prime is 15725140111. The next prime is 15725140117. The reversal of 15725140112 is 21104152751.

It is not an unprimeable number, because it can be changed into a prime (15725140111) 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, 2032283 + ... + 2040005.

Almost surely, 2^15725140112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15725140112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17377887744).

15725140112 is an abundant number, since it is smaller than the sum of its proper divisors (19030635376).

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

15725140112 is a wasteful number, since it uses less digits than its factorization.

15725140112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268 (or 8262 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

Adding to 15725140112 its reverse (21104152751), we get a palindrome (36829292863).

The spelling of 15725140112 in words is "fifteen billion, seven hundred twenty-five million, one hundred forty thousand, one hundred twelve".