126656028686 has 16 divisors (see below), whose sum is σ = 209307356208. Its totient is φ = 57000912000.

The previous prime is 126656028637. The next prime is 126656028703. The reversal of 126656028686 is 686820656621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28498235 + ... + 28502678.

It is an arithmetic number, because the mean of its divisors is an integer number (13081709763).

Almost surely, 2^126656028686 is an apocalyptic number.

126656028686 is a deficient number, since it is larger than the sum of its proper divisors (82651327522).

126656028686 is a wasteful number, since it uses less digits than its factorization.

126656028686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57001027.

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 126656028686 in words is "one hundred twenty-six billion, six hundred fifty-six million, twenty-eight thousand, six hundred eighty-six".