28666670333366 has 16 divisors (see below), whose sum is σ = 46307786558544. Its totient is φ = 13230745686624.

The previous prime is 28666670333317. The next prime is 28666670333393. The reversal of 28666670333366 is 66333307666682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25331165 + ... + 26438631.

It is an arithmetic number, because the mean of its divisors is an integer number (2894236659909).

Almost surely, 2^{28666670333366} is an apocalyptic number.

28666670333366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28666670333366 is a deficient number, since it is larger than the sum of its proper divisors (17641116225178).

28666670333366 is a wasteful number, since it uses less digits than its factorization.

28666670333366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103055.

The product of its (nonzero) digits is 423263232, while the sum is 65.

The spelling of 28666670333366 in words is "twenty-eight trillion, six hundred sixty-six billion, six hundred seventy million, three hundred thirty-three thousand, three hundred sixty-six".