127617014565667 has 4 divisors (see below), whose sum is σ = 139218561344376. Its totient is φ = 116015467786960.

The previous prime is 127617014565653. The next prime is 127617014565739. The reversal of 127617014565667 is 766565410716721.

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 127617014565667 - 2²⁷ = 127616880347939 is a prime.

It is a super-2 number, since 2×127617014565667² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127617014565599 and 127617014565608.

It is not an unprimeable number, because it can be changed into a prime (127617014563667) 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, 5800773389338 + ... + 5800773389359.

It is an arithmetic number, because the mean of its divisors is an integer number (34804640336094).

Almost surely, 2^{127617014565667} is an apocalyptic number.

127617014565667 is a deficient number, since it is larger than the sum of its proper divisors (11601546778709).

127617014565667 is a wasteful number, since it uses less digits than its factorization.

127617014565667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11601546778708.

The product of its (nonzero) digits is 88905600, while the sum is 64.

The spelling of 127617014565667 in words is "one hundred twenty-seven trillion, six hundred seventeen billion, fourteen million, five hundred sixty-five thousand, six hundred sixty-seven".