12154532535200 has 144 divisors (see below), whose sum is σ = 32666702634720. Its totient is φ = 4379280768000.

The previous prime is 12154532535193. The next prime is 12154532535209. The reversal of 12154532535200 is 253523545121.

It is a super-2 number, since 2×12154532535200² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12154532535209) 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, 5376566 + ... + 7294965.

It is an arithmetic number, because the mean of its divisors is an integer number (226852101630).

Almost surely, 2^{12154532535200} is an apocalyptic number.

12154532535200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12154532535200 is an abundant number, since it is smaller than the sum of its proper divisors (20512170099520).

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

12154532535200 is a wasteful number, since it uses less digits than its factorization.

12154532535200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12671671 (or 12671658 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 12154532535200 in words is "twelve trillion, one hundred fifty-four billion, five hundred thirty-two million, five hundred thirty-five thousand, two hundred".