126018665268 has 12 divisors (see below), whose sum is σ = 294043552320. Its totient is φ = 42006221752.

The previous prime is 126018665239. The next prime is 126018665273. The reversal of 126018665268 is 862566810621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 126018665268.

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, 5250777708 + ... + 5250777731.

It is an arithmetic number, because the mean of its divisors is an integer number (24503629360).

Almost surely, 2^126018665268 is an apocalyptic number.

It is an amenable number.

126018665268 is an abundant number, since it is smaller than the sum of its proper divisors (168024887052).

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

126018665268 is a wasteful number, since it uses less digits than its factorization.

126018665268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501555446 (or 10501555444 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 126018665268 in words is "one hundred twenty-six billion, eighteen million, six hundred sixty-five thousand, two hundred sixty-eight".