12631405660354 has 16 divisors (see below), whose sum is σ = 21108184526520. Its totient is φ = 5628849206400.

The previous prime is 12631405660343. The next prime is 12631405660421. The reversal of 12631405660354 is 45306650413621.

It can be written as a sum of positive squares in 4 ways, for example, as 10417627693225 + 2213777967129 = 3227635^2 + 1487877^2 .

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 7 ways as a sum of consecutive naturals, for example, 8376262947 + ... + 8376264454.

Almost surely, 2^{12631405660354} is an apocalyptic number.

12631405660354 is a deficient number, since it is larger than the sum of its proper divisors (8476778866166).

12631405660354 is a wasteful number, since it uses less digits than its factorization.

12631405660354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752527445.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 12631405660354 in words is "twelve trillion, six hundred thirty-one billion, four hundred five million, six hundred sixty thousand, three hundred fifty-four".