16423516 has 6 divisors (see below), whose sum is σ = 28741160. Its totient is φ = 8211756.

The previous prime is 16423501. The next prime is 16423531. The reversal of 16423516 is 61532461.

It is an interprime number because it is at equal distance from previous prime (16423501) and next prime (16423531).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2052936 + ... + 2052943.

Almost surely, 2^16423516 is an apocalyptic number.

It is an amenable number.

16423516 is a deficient number, since it is larger than the sum of its proper divisors (12317644).

16423516 is a wasteful number, since it uses less digits than its factorization.

16423516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105883 (or 4105881 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 16423516 is about 4052.5937373490. The cubic root of 16423516 is about 254.1881962353.

Adding to 16423516 its reverse (61532461), we get a palindrome (77955977).

The spelling of 16423516 in words is "sixteen million, four hundred twenty-three thousand, five hundred sixteen".