28318166064 has 60 divisors (see below), whose sum is σ = 79270935016. Its totient is φ = 9437078016.

The previous prime is 28318166027. The next prime is 28318166069. The reversal of 28318166064 is 46066181382.

28318166064 is a `hidden beast` number, since 2 + 8 + 31 + 8 + 1 + 6 + 606 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (28318166069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 627192 + ... + 670824.

Almost surely, 2^28318166064 is an apocalyptic number.

28318166064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28318166064 is an abundant number, since it is smaller than the sum of its proper divisors (50952768952).

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

28318166064 is a wasteful number, since it uses less digits than its factorization.

28318166064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48154 (or 48145 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 28318166064 in words is "twenty-eight billion, three hundred eighteen million, one hundred sixty-six thousand, sixty-four".