126016377171 has 4 divisors (see below), whose sum is σ = 168021836232. Its totient is φ = 84010918112.

The previous prime is 126016377143. The next prime is 126016377199. The reversal of 126016377171 is 171773610621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (126016377143) and next prime (126016377199).

It is a cyclic number.

It is not a de Polignac number, because 126016377171 - 2¹⁵ = 126016344403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126016377101) 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 3 ways as a sum of consecutive naturals, for example, 21002729526 + ... + 21002729531.

It is an arithmetic number, because the mean of its divisors is an integer number (42005459058).

Almost surely, 2^126016377171 is an apocalyptic number.

126016377171 is a deficient number, since it is larger than the sum of its proper divisors (42005459061).

126016377171 is an equidigital number, since it uses as much as digits as its factorization.

126016377171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42005459060.

The product of its (nonzero) digits is 74088, while the sum is 42.

Adding to 126016377171 its reverse (171773610621), we get a palindrome (297789987792).

The spelling of 126016377171 in words is "one hundred twenty-six billion, sixteen million, three hundred seventy-seven thousand, one hundred seventy-one".