127132017660 has 72 divisors (see below), whose sum is σ = 408318137136. Its totient is φ = 31907642880.

The previous prime is 127132017647. The next prime is 127132017703. The reversal of 127132017660 is 66710231721.

It is a happy number.

127132017660 is a `hidden beast` number, since 1 + 271 + 320 + 1 + 7 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 20770146 + ... + 20776265.

It is an arithmetic number, because the mean of its divisors is an integer number (5671085238).

Almost surely, 2^127132017660 is an apocalyptic number.

127132017660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127132017660 is an abundant number, since it is smaller than the sum of its proper divisors (281186119476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127132017660 is a wasteful number, since it uses less digits than its factorization.

127132017660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41546443 (or 41546438 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 127132017660 in words is "one hundred twenty-seven billion, one hundred thirty-two million, seventeen thousand, six hundred sixty".