66844114 has 4 divisors (see below), whose sum is σ = 100266174. Its totient is φ = 33422056.

The previous prime is 66844111. The next prime is 66844139. The reversal of 66844114 is 41144866.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 27217089 = 6295^2 + 5217^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66844114.

It is not an unprimeable number, because it can be changed into a prime (66844111) by changing a digit.

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, 16711027 + ... + 16711030.

Almost surely, 2^66844114 is an apocalyptic number.

66844114 is a deficient number, since it is larger than the sum of its proper divisors (33422060).

66844114 is a wasteful number, since it uses less digits than its factorization.

66844114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33422059.

The product of its digits is 18432, while the sum is 34.

The square root of 66844114 is about 8175.8249736647. The cubic root of 66844114 is about 405.8395711616.

The spelling of 66844114 in words is "sixty-six million, eight hundred forty-four thousand, one hundred fourteen".