126557900359012 has 6 divisors (see below), whose sum is σ = 221476325628278. Its totient is φ = 63278950179504.

The previous prime is 126557900358991. The next prime is 126557900359013. The reversal of 126557900359012 is 210953009755621.

It can be written as a sum of positive squares in only one way, i.e., 64210989606976 + 62346910752036 = 8013176^2 + 7896006^2 .

It is a super-2 number, since 2×126557900359012² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126557900359013) by changing a digit.

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 as a sum of consecutive naturals, namely, 15819737544873 + ... + 15819737544880.

Almost surely, 2^{126557900359012} is an apocalyptic number.

It is an amenable number.

126557900359012 is a deficient number, since it is larger than the sum of its proper divisors (94918425269266).

126557900359012 is a wasteful number, since it uses less digits than its factorization.

126557900359012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31639475089757 (or 31639475089755 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 55.

The spelling of 126557900359012 in words is "one hundred twenty-six trillion, five hundred fifty-seven billion, nine hundred million, three hundred fifty-nine thousand, twelve".