66386484 has 36 divisors (see below), whose sum is σ = 168071904. Its totient is φ = 22094352.

The previous prime is 66386449. The next prime is 66386497. The reversal of 66386484 is 48468366.

66386484 is a `hidden beast` number, since 6 + 638 + 6 + 4 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33859 + ... + 35765.

It is an arithmetic number, because the mean of its divisors is an integer number (4668664).

Almost surely, 2^66386484 is an apocalyptic number.

It is an amenable number.

66386484 is an abundant number, since it is smaller than the sum of its proper divisors (101685420).

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

66386484 is a wasteful number, since it uses less digits than its factorization.

66386484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884 (or 2879 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 66386484 is about 8147.7901298450. The cubic root of 66386484 is about 404.9112928719.

The spelling of 66386484 in words is "sixty-six million, three hundred eighty-six thousand, four hundred eighty-four".