66533356 has 12 divisors (see below), whose sum is σ = 118407240. Its totient is φ = 32702720.

The previous prime is 66533353. The next prime is 66533377. The reversal of 66533356 is 65333566.

It is not an unprimeable number, because it can be changed into a prime (66533351) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 140725 + ... + 141196.

It is an arithmetic number, because the mean of its divisors is an integer number (9867270).

Almost surely, 2^66533356 is an apocalyptic number.

It is an amenable number.

66533356 is a deficient number, since it is larger than the sum of its proper divisors (51873884).

66533356 is a wasteful number, since it uses less digits than its factorization.

66533356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281984 (or 281982 counting only the distinct ones).

The product of its digits is 145800, while the sum is 37.

The square root of 66533356 is about 8156.7981463317. The cubic root of 66533356 is about 405.2096785514.

The spelling of 66533356 in words is "sixty-six million, five hundred thirty-three thousand, three hundred fifty-six".