12250143543455 has 16 divisors (see below), whose sum is σ = 15065602836480. Its totient is φ = 9559483653408.

The previous prime is 12250143543403. The next prime is 12250143543457. The reversal of 12250143543455 is 55434534105221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12250143543455 - 2¹⁰ = 12250143542431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12250143543457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186792647 + ... + 186858216.

It is an arithmetic number, because the mean of its divisors is an integer number (941600177280).

Almost surely, 2^{12250143543455} is an apocalyptic number.

12250143543455 is a deficient number, since it is larger than the sum of its proper divisors (2815459293025).

12250143543455 is an equidigital number, since it uses as much as digits as its factorization.

12250143543455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373651030.

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 12250143543455 its reverse (55434534105221), we get a palindrome (67684677648676).

The spelling of 12250143543455 in words is "twelve trillion, two hundred fifty billion, one hundred forty-three million, five hundred forty-three thousand, four hundred fifty-five".