12153251520 has 168 divisors, whose sum is σ = 43619842656. Its totient is φ = 3099942912.

The previous prime is 12153251507. The next prime is 12153251527. The reversal of 12153251520 is 2515235121.

12153251520 is a `hidden beast` number, since 121 + 5 + 3 + 2 + 515 + 20 = 666.

It is not an unprimeable number, because it can be changed into a prime (12153251527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25497 + ... + 157976.

Almost surely, 2^12153251520 is an apocalyptic number.

12153251520 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 12153251520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21809921328).

12153251520 is an abundant number, since it is smaller than the sum of its proper divisors (31466591136).

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

12153251520 is a wasteful number, since it uses less digits than its factorization.

12153251520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183519 (or 183506 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 12153251520 its reverse (2515235121), we get a palindrome (14668486641).

The spelling of 12153251520 in words is "twelve billion, one hundred fifty-three million, two hundred fifty-one thousand, five hundred twenty".