168126426261 has 12 divisors (see below), whose sum is σ = 242935957888. Its totient is φ = 112044280104.

The previous prime is 168126426257. The next prime is 168126426271. The reversal of 168126426261 is 162624621861.

It is a happy number.

168126426261 is a `hidden beast` number, since 1 + 6 + 8 + 12 + 6 + 4 + 2 + 626 + 1 = 666.

168126426261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168126426261 - 2² = 168126426257 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 (168126426211) 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 11 ways as a sum of consecutive naturals, for example, 3307045 + ... + 3357498.

Almost surely, 2^168126426261 is an apocalyptic number.

It is an amenable number.

168126426261 is a deficient number, since it is larger than the sum of its proper divisors (74809531627).

168126426261 is a wasteful number, since it uses less digits than its factorization.

168126426261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667352 (or 6667349 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 168126426261 in words is "one hundred sixty-eight billion, one hundred twenty-six million, four hundred twenty-six thousand, two hundred sixty-one".