66201356 has 18 divisors (see below), whose sum is σ = 125450892. Its totient is φ = 30554160.

The previous prime is 66201313. The next prime is 66201361. The reversal of 66201356 is 65310266.

66201356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5 ways as a sum of consecutive naturals, for example, 48290 + ... + 49641.

It is an arithmetic number, because the mean of its divisors is an integer number (6969494).

Almost surely, 2^66201356 is an apocalyptic number.

It is an amenable number.

66201356 is a deficient number, since it is larger than the sum of its proper divisors (59249536).

66201356 is a wasteful number, since it uses less digits than its factorization.

66201356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97961 (or 97946 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 66201356 is about 8136.4215721655. The cubic root of 66201356 is about 404.5345585295.

The spelling of 66201356 in words is "sixty-six million, two hundred one thousand, three hundred fifty-six".