66043256 has 8 divisors (see below), whose sum is σ = 123831120. Its totient is φ = 33021624.

The previous prime is 66043231. The next prime is 66043267. The reversal of 66043256 is 65234066.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4127696 + ... + 4127711.

It is an arithmetic number, because the mean of its divisors is an integer number (15478890).

Almost surely, 2^66043256 is an apocalyptic number.

It is an amenable number.

66043256 is a deficient number, since it is larger than the sum of its proper divisors (57787864).

66043256 is a wasteful number, since it uses less digits than its factorization.

66043256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255413 (or 8255409 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 66043256 is about 8126.7001913446. The cubic root of 66043256 is about 404.2122695889.

The spelling of 66043256 in words is "sixty-six million, forty-three thousand, two hundred fifty-six".