12400660145134 has 48 divisors (see below), whose sum is σ = 19032884744832. Its totient is φ = 6059470527936.

The previous prime is 12400660145077. The next prime is 12400660145147. The reversal of 12400660145134 is 43154106600421.

It is a super-2 number, since 2×12400660145134² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12400660145093 and 12400660145102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1200097432 + ... + 1200107764.

It is an arithmetic number, because the mean of its divisors is an integer number (396518432184).

Almost surely, 2^{12400660145134} is an apocalyptic number.

12400660145134 is a deficient number, since it is larger than the sum of its proper divisors (6632224599698).

12400660145134 is a wasteful number, since it uses less digits than its factorization.

12400660145134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11449 (or 11390 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 12400660145134 its reverse (43154106600421), we get a palindrome (55554766745555).

The spelling of 12400660145134 in words is "twelve trillion, four hundred billion, six hundred sixty million, one hundred forty-five thousand, one hundred thirty-four".