12545541211320 has 192 divisors, whose sum is σ = 44344142388000. Its totient is φ = 3057557529600.

The previous prime is 12545541211261. The next prime is 12545541211363. The reversal of 12545541211320 is 2311214554521.

12545541211320 is a `hidden beast` number, since 1 + 2 + 54 + 554 + 1 + 21 + 1 + 32 + 0 = 666.

It is a super-2 number, since 2×12545541211320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12797970 + ... + 13743329.

Almost surely, 2^{12545541211320} is an apocalyptic number.

12545541211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12545541211320 is an abundant number, since it is smaller than the sum of its proper divisors (31798601176680).

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

12545541211320 is a wasteful number, since it uses less digits than its factorization.

12545541211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26541430 (or 26541423 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 12545541211320 its reverse (2311214554521), we get a palindrome (14856755765841).

The spelling of 12545541211320 in words is "twelve trillion, five hundred forty-five billion, five hundred forty-one million, two hundred eleven thousand, three hundred twenty".