127666549382 has 8 divisors (see below), whose sum is σ = 191501786952. Its totient is φ = 63832620400.

The previous prime is 127666549369. The next prime is 127666549399. The reversal of 127666549382 is 283945666721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×127666549382² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 28844 + ... + 506127.

It is an arithmetic number, because the mean of its divisors is an integer number (23937723369).

Almost surely, 2^127666549382 is an apocalyptic number.

127666549382 is a deficient number, since it is larger than the sum of its proper divisors (63835237570).

127666549382 is a wasteful number, since it uses less digits than its factorization.

127666549382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654294.

The product of its digits is 26127360, while the sum is 59.

The spelling of 127666549382 in words is "one hundred twenty-seven billion, six hundred sixty-six million, five hundred forty-nine thousand, three hundred eighty-two".