1664702014 has 8 divisors (see below), whose sum is σ = 2498051088. Its totient is φ = 832018320.

The previous prime is 1664701991. The next prime is 1664702021. The reversal of 1664702014 is 4102074661.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 160042 + ... + 170125.

It is an arithmetic number, because the mean of its divisors is an integer number (312256386).

Almost surely, 2^1664702014 is an apocalyptic number.

1664702014 is a deficient number, since it is larger than the sum of its proper divisors (833349074).

1664702014 is a wasteful number, since it uses less digits than its factorization.

1664702014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332690.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1664702014 is about 40800.7599684124. The cubic root of 1664702014 is about 1185.1650476609.

Adding to 1664702014 its reverse (4102074661), we get a palindrome (5766776675).

The spelling of 1664702014 in words is "one billion, six hundred sixty-four million, seven hundred two thousand, fourteen".