126445166771 has 16 divisors (see below), whose sum is σ = 157656288768. Its totient is φ = 98522222400.

The previous prime is 126445166747. The next prime is 126445166791. The reversal of 126445166771 is 177661544621.

It is not a de Polignac number, because 126445166771 - 2²⁶ = 126378057907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126445166741) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1365266 + ... + 1454936.

It is an arithmetic number, because the mean of its divisors is an integer number (9853518048).

Almost surely, 2^126445166771 is an apocalyptic number.

126445166771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126445166771 is a deficient number, since it is larger than the sum of its proper divisors (31211121997).

126445166771 is a wasteful number, since it uses less digits than its factorization.

126445166771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108002.

The product of its digits is 1693440, while the sum is 50.

The spelling of 126445166771 in words is "one hundred twenty-six billion, four hundred forty-five million, one hundred sixty-six thousand, seven hundred seventy-one".