127376664656 has 20 divisors (see below), whose sum is σ = 248448616500. Its totient is φ = 63260892672.

The previous prime is 127376664629. The next prime is 127376664671. The reversal of 127376664656 is 656466673721.

It can be written as a sum of positive squares in 2 ways, for example, as 65425454656 + 61951210000 = 255784^2 + 248900^2 .

It is a junction number, because it is equal to n+sod(n) for n = 127376664595 and 127376664604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26712521 + ... + 26717288.

It is an arithmetic number, because the mean of its divisors is an integer number (12422430825).

Almost surely, 2^127376664656 is an apocalyptic number.

127376664656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

127376664656 is a deficient number, since it is larger than the sum of its proper divisors (121071951844).

127376664656 is a wasteful number, since it uses less digits than its factorization.

127376664656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53429966 (or 53429960 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 59.

The spelling of 127376664656 in words is "one hundred twenty-seven billion, three hundred seventy-six million, six hundred sixty-four thousand, six hundred fifty-six".