127866668 has 6 divisors (see below), whose sum is σ = 223766676. Its totient is φ = 63933332.

The previous prime is 127866667. The next prime is 127866671. The reversal of 127866668 is 866668721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (127866667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15983330 + ... + 15983337.

It is an arithmetic number, because the mean of its divisors is an integer number (37294446).

Almost surely, 2^127866668 is an apocalyptic number.

It is an amenable number.

127866668 is a deficient number, since it is larger than the sum of its proper divisors (95900008).

127866668 is a wasteful number, since it uses less digits than its factorization.

127866668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31966671 (or 31966669 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 127866668 is about 11307.8144661115. The cubic root of 127866668 is about 503.7933718791.

The spelling of 127866668 in words is "one hundred twenty-seven million, eight hundred sixty-six thousand, six hundred sixty-eight".