15530112140 has 12 divisors (see below), whose sum is σ = 32613235536. Its totient is φ = 6212044848.

The previous prime is 15530112139. The next prime is 15530112149. The reversal of 15530112140 is 4121103551.

It is not an unprimeable number, because it can be changed into a prime (15530112149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388252784 + ... + 388252823.

It is an arithmetic number, because the mean of its divisors is an integer number (2717769628).

Almost surely, 2^15530112140 is an apocalyptic number.

15530112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15530112140 is an abundant number, since it is smaller than the sum of its proper divisors (17083123396).

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

15530112140 is a wasteful number, since it uses less digits than its factorization.

15530112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776505616 (or 776505614 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 15530112140 its reverse (4121103551), we get a palindrome (19651215691).

The spelling of 15530112140 in words is "fifteen billion, five hundred thirty million, one hundred twelve thousand, one hundred forty".