127630666 has 16 divisors (see below), whose sum is σ = 194987520. Its totient is φ = 62639280.

The previous prime is 127630637. The next prime is 127630691. The reversal of 127630666 is 666036721.

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 7 ways as a sum of consecutive naturals, for example, 87975 + ... + 89413.

It is an arithmetic number, because the mean of its divisors is an integer number (12186720).

Almost surely, 2^127630666 is an apocalyptic number.

127630666 is a deficient number, since it is larger than the sum of its proper divisors (67356854).

127630666 is a wasteful number, since it uses less digits than its factorization.

127630666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 127630666 is about 11297.3742967116. The cubic root of 127630666 is about 503.4832325004.

The spelling of 127630666 in words is "one hundred twenty-seven million, six hundred thirty thousand, six hundred sixty-six".