126005555216 has 20 divisors (see below), whose sum is σ = 244243240572. Its totient is φ = 62975041536.

The previous prime is 126005555201. The next prime is 126005555219. The reversal of 126005555216 is 612555500621.

It can be written as a sum of positive squares in 2 ways, for example, as 103684000000 + 22321555216 = 322000^2 + 149404^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126005555216.

It is not an unprimeable number, because it can be changed into a prime (126005555219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696001 + ... + 1768736.

Almost surely, 2^126005555216 is an apocalyptic number.

126005555216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126005555216 is a deficient number, since it is larger than the sum of its proper divisors (118237685356).

126005555216 is a wasteful number, since it uses less digits than its factorization.

126005555216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467018 (or 3467012 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 126005555216 in words is "one hundred twenty-six billion, five million, five hundred fifty-five thousand, two hundred sixteen".