126556345688 has 16 divisors (see below), whose sum is σ = 237350931360. Its totient is φ = 63262764000.

The previous prime is 126556345649. The next prime is 126556345703. The reversal of 126556345688 is 886543655621.

It is a congruent 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, 1891163 + ... + 1956938.

It is an arithmetic number, because the mean of its divisors is an integer number (14834433210).

Almost surely, 2^126556345688 is an apocalyptic number.

It is an amenable number.

126556345688 is a deficient number, since it is larger than the sum of its proper divisors (110794585672).

126556345688 is a wasteful number, since it uses less digits than its factorization.

126556345688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852218 (or 3852214 counting only the distinct ones).

The product of its digits is 41472000, while the sum is 59.

The spelling of 126556345688 in words is "one hundred twenty-six billion, five hundred fifty-six million, three hundred forty-five thousand, six hundred eighty-eight".