1666052214 has 16 divisors (see below), whose sum is σ = 3333689328. Its totient is φ = 555086592.

The previous prime is 1666052197. The next prime is 1666052257. The reversal of 1666052214 is 4122506661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52147 + ... + 77790.

It is an arithmetic number, because the mean of its divisors is an integer number (208355583).

Almost surely, 2^1666052214 is an apocalyptic number.

1666052214 is an abundant number, since it is smaller than the sum of its proper divisors (1667637114).

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

1666052214 is a wasteful number, since it uses less digits than its factorization.

1666052214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132079.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1666052214 is about 40817.3028751288. The cubic root of 1666052214 is about 1185.4853807491.

Adding to 1666052214 its reverse (4122506661), we get a palindrome (5788558875).

The spelling of 1666052214 in words is "one billion, six hundred sixty-six million, fifty-two thousand, two hundred fourteen".