66463056 has 60 divisors (see below), whose sum is σ = 202918560. Its totient is φ = 20139840.

The previous prime is 66463051. The next prime is 66463057. The reversal of 66463056 is 65036466.

66463056 is a `hidden beast` number, since 6 + 646 + 3 + 0 + 5 + 6 = 666.

66463056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 66463056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66463051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19396 + ... + 22563.

It is an arithmetic number, because the mean of its divisors is an integer number (3381976).

Almost surely, 2^66463056 is an apocalyptic number.

66463056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

66463056 is an abundant number, since it is smaller than the sum of its proper divisors (136455504).

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

66463056 is a wasteful number, since it uses less digits than its factorization.

66463056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41984 (or 41975 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 66463056 is about 8152.4877184820. The cubic root of 66463056 is about 405.0669116698.

The spelling of 66463056 in words is "sixty-six million, four hundred sixty-three thousand, fifty-six".