15530857152 has 224 divisors, whose sum is σ = 44031651840. Its totient is φ = 4822364160.

The previous prime is 15530857151. The next prime is 15530857219. The reversal of 15530857152 is 25175803551.

It is a super-2 number, since 2×15530857152² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15530857151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24004093 + ... + 24004739.

Almost surely, 2^15530857152 is an apocalyptic number.

15530857152 is a gapful number since it is divisible by the number (12) 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 15530857152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22015825920).

15530857152 is an abundant number, since it is smaller than the sum of its proper divisors (28500794688).

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

15530857152 is a wasteful number, since it uses less digits than its factorization.

15530857152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 42.

The spelling of 15530857152 in words is "fifteen billion, five hundred thirty million, eight hundred fifty-seven thousand, one hundred fifty-two".