126671176621 has 16 divisors (see below), whose sum is σ = 138652488576. Its totient is φ = 114768000000.

The previous prime is 126671176571. The next prime is 126671176633.

126671176621 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 126671176621 - 2¹⁵ = 126671143853 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 (126671176651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5285656 + ... + 5309566.

It is an arithmetic number, because the mean of its divisors is an integer number (8665780536).

Almost surely, 2^126671176621 is an apocalyptic number.

126671176621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126671176621 is a deficient number, since it is larger than the sum of its proper divisors (11981311955).

126671176621 is a wasteful number, since it uses less digits than its factorization.

126671176621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25524.

The product of its digits is 254016, while the sum is 46.

The spelling of 126671176621 in words is "one hundred twenty-six billion, six hundred seventy-one million, one hundred seventy-six thousand, six hundred twenty-one".