127171002211667 has 4 divisors (see below), whose sum is σ = 127171031374296. Its totient is φ = 127170973049040.

The previous prime is 127171002211663. The next prime is 127171002211723. The reversal of 127171002211667 is 766112200171721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 127171002211667 - 2² = 127171002211663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127171002211663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6574709 + ... + 17250182.

It is an arithmetic number, because the mean of its divisors is an integer number (31792757843574).

Almost surely, 2^{127171002211667} is an apocalyptic number.

127171002211667 is a deficient number, since it is larger than the sum of its proper divisors (29162629).

127171002211667 is an equidigital number, since it uses as much as digits as its factorization.

127171002211667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29162628.

The product of its (nonzero) digits is 98784, while the sum is 44.

The spelling of 127171002211667 in words is "one hundred twenty-seven trillion, one hundred seventy-one billion, two million, two hundred eleven thousand, six hundred sixty-seven".