127360166491 has 16 divisors (see below), whose sum is σ = 134853269760. Its totient is φ = 120075409440.

The previous prime is 127360166429. The next prime is 127360166497. The reversal of 127360166491 is 194661063721.

It is not a de Polignac number, because 127360166491 - 2⁷ = 127360166363 is a prime.

It is a super-2 number, since 2×127360166491² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127360166497) 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, 5278986 + ... + 5303056.

It is an arithmetic number, because the mean of its divisors is an integer number (8428329360).

Almost surely, 2^127360166491 is an apocalyptic number.

127360166491 is a deficient number, since it is larger than the sum of its proper divisors (7493103269).

127360166491 is a wasteful number, since it uses less digits than its factorization.

127360166491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28386.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 127360166491 in words is "one hundred twenty-seven billion, three hundred sixty million, one hundred sixty-six thousand, four hundred ninety-one".