15530042000000 has 448 divisors, whose sum is σ = 42568836361920. Its totient is φ = 5596416000000.

The previous prime is 15530041999987. The next prime is 15530042000003. The reversal of 15530042000000 is 24003551.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (15530042000003) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2485996877 + ... + 2486003123.

Almost surely, 2^{15530042000000} is an apocalyptic number.

15530042000000 is a gapful number since it is divisible by the number (10) 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 15530042000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21284418180960).

15530042000000 is an abundant number, since it is smaller than the sum of its proper divisors (27038794361920).

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

15530042000000 is an frugal number, since it uses more digits than its factorization.

15530042000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415 (or 6378 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 15530042000000 its reverse (24003551), we get a palindrome (15530066003551).

The spelling of 15530042000000 in words is "fifteen trillion, five hundred thirty billion, forty-two million", and thus it is an aban number.