28076316666 has 32 divisors (see below), whose sum is σ = 57521292480. Its totient is φ = 9132978816.

The previous prime is 28076316643. The next prime is 28076316673. The reversal of 28076316666 is 66661367082.

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, 240961 + ... + 337956.

It is an arithmetic number, because the mean of its divisors is an integer number (1797540390).

Almost surely, 2^28076316666 is an apocalyptic number.

28076316666 is an abundant number, since it is smaller than the sum of its proper divisors (29444975814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28076316666 is a wasteful number, since it uses less digits than its factorization.

28076316666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579118.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 28076316666 in words is "twenty-eight billion, seventy-six million, three hundred sixteen thousand, six hundred sixty-six".