127070672671665 has 24 divisors (see below), whose sum is σ = 221840406977280. Its totient is φ = 67283464087584.

The previous prime is 127070672671639. The next prime is 127070672671687. The reversal of 127070672671665 is 566176276070721.

It is not a de Polignac number, because 127070672671665 - 2¹⁸ = 127070672409521 is a prime.

It is a super-2 number, since 2×127070672671665² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10157521537 + ... + 10157534046.

It is an arithmetic number, because the mean of its divisors is an integer number (9243350290720).

Almost surely, 2^{127070672671665} is an apocalyptic number.

127070672671665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127070672671665 is a deficient number, since it is larger than the sum of its proper divisors (94769734305615).

127070672671665 is a wasteful number, since it uses less digits than its factorization.

127070672671665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20315055733 (or 20315055730 counting only the distinct ones).

The product of its (nonzero) digits is 62233920, while the sum is 63.

The spelling of 127070672671665 in words is "one hundred twenty-seven trillion, seventy billion, six hundred seventy-two million, six hundred seventy-one thousand, six hundred sixty-five".