126716556701 has 8 divisors (see below), whose sum is σ = 145959229440. Its totient is φ = 107758960848.

The previous prime is 126716556689. The next prime is 126716556763. The reversal of 126716556701 is 107655617621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126716556701 - 2²² = 126712362397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126716556781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71268266 + ... + 71270043.

It is an arithmetic number, because the mean of its divisors is an integer number (18244903680).

Almost surely, 2^126716556701 is an apocalyptic number.

It is an amenable number.

126716556701 is a deficient number, since it is larger than the sum of its proper divisors (19242672739).

126716556701 is a wasteful number, since it uses less digits than its factorization.

126716556701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142538443.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 126716556701 in words is "one hundred twenty-six billion, seven hundred sixteen million, five hundred fifty-six thousand, seven hundred one".