28336016065680 has 480 divisors, whose sum is σ = 97825812604416. Its totient is φ = 7347548123136.

The previous prime is 28336016065631. The next prime is 28336016065691. The reversal of 28336016065680 is 8656061063382.

It is a happy number.

28336016065680 is a `hidden beast` number, since 2 + 8 + 3 + 3 + 60 + 16 + 0 + 6 + 568 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2282763154 + ... + 2282775566.

Almost surely, 2^{28336016065680} is an apocalyptic number.

28336016065680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28336016065680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48912906302208).

28336016065680 is an abundant number, since it is smaller than the sum of its proper divisors (69489796538736).

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

28336016065680 is a wasteful number, since it uses less digits than its factorization.

28336016065680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13015 (or 13006 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 28336016065680 in words is "twenty-eight trillion, three hundred thirty-six billion, sixteen million, sixty-five thousand, six hundred eighty".