66343564 has 12 divisors (see below), whose sum is σ = 132687184. Its totient is φ = 28432944.

The previous prime is 66343549. The next prime is 66343577. The reversal of 66343564 is 46534366.

66343564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

66343564 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1184679 + ... + 1184734.

Almost surely, 2^66343564 is an apocalyptic number.

It is an amenable number.

66343564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66343564 is a wasteful number, since it uses less digits than its factorization.

66343564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369424 (or 2369422 counting only the distinct ones).

The product of its digits is 155520, while the sum is 37.

The square root of 66343564 is about 8145.1558610011. The cubic root of 66343564 is about 404.8240133624.

The spelling of 66343564 in words is "sixty-six million, three hundred forty-three thousand, five hundred sixty-four".