12150431540455 has 64 divisors (see below), whose sum is σ = 15986199398400. Its totient is φ = 8811900264960.

The previous prime is 12150431540447. The next prime is 12150431540459. The reversal of 12150431540455 is 55404513405121.

It is not a de Polignac number, because 12150431540455 - 2³ = 12150431540447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150431540459) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 823248366 + ... + 823263124.

It is an arithmetic number, because the mean of its divisors is an integer number (249784365600).

Almost surely, 2^{12150431540455} is an apocalyptic number.

12150431540455 is a deficient number, since it is larger than the sum of its proper divisors (3835767857945).

12150431540455 is a wasteful number, since it uses less digits than its factorization.

12150431540455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15904.

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 12150431540455 its reverse (55404513405121), we get a palindrome (67554944945576).

The spelling of 12150431540455 in words is "twelve trillion, one hundred fifty billion, four hundred thirty-one million, five hundred forty thousand, four hundred fifty-five".