66220334 has 16 divisors (see below), whose sum is σ = 100861200. Its totient is φ = 32603904.

The previous prime is 66220291. The next prime is 66220337. The reversal of 66220334 is 43302266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66220337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38174 + ... + 39870.

It is an arithmetic number, because the mean of its divisors is an integer number (6303825).

Almost surely, 2^66220334 is an apocalyptic number.

66220334 is a deficient number, since it is larger than the sum of its proper divisors (34640866).

66220334 is a wasteful number, since it uses less digits than its factorization.

66220334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 66220334 is about 8137.5877261016. The cubic root of 66220334 is about 404.5732109268.

The spelling of 66220334 in words is "sixty-six million, two hundred twenty thousand, three hundred thirty-four".