126405916696 has 32 divisors (see below), whose sum is σ = 257533286400. Its totient is φ = 57944985120.

The previous prime is 126405916667. The next prime is 126405916709. The reversal of 126405916696 is 696619504621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13408480 + ... + 13417903.

It is an arithmetic number, because the mean of its divisors is an integer number (8047915200).

Almost surely, 2^126405916696 is an apocalyptic number.

It is an amenable number.

126405916696 is an abundant number, since it is smaller than the sum of its proper divisors (131127369704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126405916696 is a wasteful number, since it uses less digits than its factorization.

126405916696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26826439 (or 26826435 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 126405916696 in words is "one hundred twenty-six billion, four hundred five million, nine hundred sixteen thousand, six hundred ninety-six".