1668036214 has 16 divisors (see below), whose sum is σ = 2697099552. Its totient is φ = 769125888.

The previous prime is 1668036211. The next prime is 1668036241. The reversal of 1668036214 is 4126308661.

It is a happy number.

It is a super-2 number, since 2×1668036214² = 5564689622430907592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668036211) by changing a digit.

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, 2539 + ... + 57814.

It is an arithmetic number, because the mean of its divisors is an integer number (168568722).

Almost surely, 2^1668036214 is an apocalyptic number.

1668036214 is a deficient number, since it is larger than the sum of its proper divisors (1029063338).

1668036214 is a wasteful number, since it uses less digits than its factorization.

1668036214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61431.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1668036214 is about 40841.5990627204. The cubic root of 1668036214 is about 1185.9557681663.

The spelling of 1668036214 in words is "one billion, six hundred sixty-eight million, thirty-six thousand, two hundred fourteen".