16371664 has 10 divisors (see below), whose sum is σ = 31720130. Its totient is φ = 8185824.

The previous prime is 16371661. The next prime is 16371679. The reversal of 16371664 is 46617361.

It can be written as a sum of positive squares in only one way, i.e., 15936064 + 435600 = 3992^2 + 660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16371661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511599 + ... + 511630.

It is an arithmetic number, because the mean of its divisors is an integer number (3172013).

Almost surely, 2^16371664 is an apocalyptic number.

It is an amenable number.

16371664 is a deficient number, since it is larger than the sum of its proper divisors (15348466).

16371664 is a wasteful number, since it uses less digits than its factorization.

16371664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023237 (or 1023231 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 16371664 is about 4046.1912955272. The cubic root of 16371664 is about 253.9204082365.

The spelling of 16371664 in words is "sixteen million, three hundred seventy-one thousand, six hundred sixty-four".