66202066 has 16 divisors (see below), whose sum is σ = 114615360. Its totient is φ = 28090800.

The previous prime is 66202049. The next prime is 66202091. The reversal of 66202066 is 66020266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21996 + ... + 24823.

It is an arithmetic number, because the mean of its divisors is an integer number (7163460).

Almost surely, 2^66202066 is an apocalyptic number.

66202066 is a deficient number, since it is larger than the sum of its proper divisors (48413294).

66202066 is a wasteful number, since it uses less digits than its factorization.

66202066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46929.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 66202066 is about 8136.4652030227. The cubic root of 66202066 is about 404.5360047159.

The spelling of 66202066 in words is "sixty-six million, two hundred two thousand, sixty-six".