12145153623553 has 16 divisors (see below), whose sum is σ = 12386227746816. Its totient is φ = 11906348992720.

The previous prime is 12145153623487. The next prime is 12145153623587. The reversal of 12145153623553 is 35532635154121.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12145153623553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12145153623353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184188276 + ... + 184254202.

It is an arithmetic number, because the mean of its divisors is an integer number (774139234176).

Almost surely, 2^{12145153623553} is an apocalyptic number.

It is an amenable number.

12145153623553 is a deficient number, since it is larger than the sum of its proper divisors (241074123263).

12145153623553 is a wasteful number, since it uses less digits than its factorization.

12145153623553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83084.

The product of its digits is 1620000, while the sum is 46.

Adding to 12145153623553 its reverse (35532635154121), we get a palindrome (47677788777674).

The spelling of 12145153623553 in words is "twelve trillion, one hundred forty-five billion, one hundred fifty-three million, six hundred twenty-three thousand, five hundred fifty-three".