12631405660355 has 4 divisors (see below), whose sum is σ = 15157686792432. Its totient is φ = 10105124528280.

The previous prime is 12631405660343. The next prime is 12631405660421. The reversal of 12631405660355 is 55306650413621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12631405660355 - 2³⁰ = 12630331918531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263140566031 + ... + 1263140566040.

It is an arithmetic number, because the mean of its divisors is an integer number (3789421698108).

Almost surely, 2^{12631405660355} is an apocalyptic number.

12631405660355 is a deficient number, since it is larger than the sum of its proper divisors (2526281132077).

12631405660355 is an equidigital number, since it uses as much as digits as its factorization.

12631405660355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526281132076.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 12631405660355 in words is "twelve trillion, six hundred thirty-one billion, four hundred five million, six hundred sixty thousand, three hundred fifty-five".