126363243556 has 12 divisors (see below), whose sum is σ = 241238919600. Its totient is φ = 57437837960.

The previous prime is 126363243509. The next prime is 126363243577. The reversal of 126363243556 is 655342363621.

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, 1435945906 + ... + 1435945993.

It is an arithmetic number, because the mean of its divisors is an integer number (20103243300).

Almost surely, 2^126363243556 is an apocalyptic number.

It is an amenable number.

126363243556 is a deficient number, since it is larger than the sum of its proper divisors (114875676044).

126363243556 is a wasteful number, since it uses less digits than its factorization.

126363243556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871891914 (or 2871891912 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 46.

The spelling of 126363243556 in words is "one hundred twenty-six billion, three hundred sixty-three million, two hundred forty-three thousand, five hundred fifty-six".