126343611556 has 24 divisors (see below), whose sum is σ = 225823409280. Its totient is φ = 61822849632.

The previous prime is 126343611551. The next prime is 126343611607. The reversal of 126343611556 is 655116343621.

It is a super-2 number, since 2×126343611556² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126343611551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3935586 + ... + 3967558.

It is an arithmetic number, because the mean of its divisors is an integer number (9409308720).

Almost surely, 2^126343611556 is an apocalyptic number.

It is an amenable number.

126343611556 is a deficient number, since it is larger than the sum of its proper divisors (99479797724).

126343611556 is a wasteful number, since it uses less digits than its factorization.

126343611556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53043 (or 53041 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The spelling of 126343611556 in words is "one hundred twenty-six billion, three hundred forty-three million, six hundred eleven thousand, five hundred fifty-six".