127373780066 has 32 divisors (see below), whose sum is σ = 218151698688. Its totient is φ = 55255968000.

The previous prime is 127373780047. The next prime is 127373780071. The reversal of 127373780066 is 660087373721.

It is a junction number, because it is equal to n+sod(n) for n = 127373779996 and 127373780023.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140081 + ... + 523803.

It is an arithmetic number, because the mean of its divisors is an integer number (6817240584).

Almost surely, 2^127373780066 is an apocalyptic number.

127373780066 is a deficient number, since it is larger than the sum of its proper divisors (90777918622).

127373780066 is a wasteful number, since it uses less digits than its factorization.

127373780066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384506.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 127373780066 in words is "one hundred twenty-seven billion, three hundred seventy-three million, seven hundred eighty thousand, sixty-six".