127318621606 has 16 divisors (see below), whose sum is σ = 208626163200. Its totient is φ = 57792489480.

The previous prime is 127318621541. The next prime is 127318621607. The reversal of 127318621606 is 606126813721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127318621607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3964206 + ... + 3996193.

It is an arithmetic number, because the mean of its divisors is an integer number (13039135200).

Almost surely, 2^127318621606 is an apocalyptic number.

127318621606 is a deficient number, since it is larger than the sum of its proper divisors (81307541594).

127318621606 is a wasteful number, since it uses less digits than its factorization.

127318621606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961139.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 127318621606 in words is "one hundred twenty-seven billion, three hundred eighteen million, six hundred twenty-one thousand, six hundred six".