66214446 has 16 divisors (see below), whose sum is σ = 135247104. Its totient is φ = 21601784.

The previous prime is 66214441. The next prime is 66214469. The reversal of 66214446 is 64441266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66214441) 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, 117120 + ... + 117683.

It is an arithmetic number, because the mean of its divisors is an integer number (8452944).

Almost surely, 2^66214446 is an apocalyptic number.

66214446 is an abundant number, since it is smaller than the sum of its proper divisors (69032658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66214446 is a wasteful number, since it uses less digits than its factorization.

66214446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234855.

The product of its digits is 27648, while the sum is 33.

The square root of 66214446 is about 8137.2259400855. The cubic root of 66214446 is about 404.5612196570.

The spelling of 66214446 in words is "sixty-six million, two hundred fourteen thousand, four hundred forty-six".