66206883456 has 96 divisors (see below), whose sum is σ = 217733973600. Its totient is φ = 18916250112.

The previous prime is 66206883433. The next prime is 66206883481. The reversal of 66206883456 is 65438860266.

It is a happy number.

66206883456 is a `hidden beast` number, since 6 + 620 + 6 + 8 + 8 + 3 + 4 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 11 ways as a sum of consecutive naturals, for example, 4097026 + ... + 4113153.

It is an arithmetic number, because the mean of its divisors is an integer number (2268062225).

Almost surely, 2^66206883456 is an apocalyptic number.

It is an amenable number.

66206883456 is an abundant number, since it is smaller than the sum of its proper divisors (151527090144).

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

66206883456 is a wasteful number, since it uses less digits than its factorization.

66206883456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8210206 (or 8210191 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 66206883456 in words is "sixty-six billion, two hundred six million, eight hundred eighty-three thousand, four hundred fifty-six".