16501996 has 12 divisors (see below), whose sum is σ = 33004048. Its totient is φ = 7072272.

The previous prime is 16501987. The next prime is 16501997. The reversal of 16501996 is 69910561.

16501996 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16501997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294651 + ... + 294706.

Almost surely, 2^16501996 is an apocalyptic number.

It is an amenable number.

16501996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16501996 is a wasteful number, since it uses less digits than its factorization.

16501996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589368 (or 589366 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 16501996 is about 4062.2648855041. The cubic root of 16501996 is about 254.5924336450.

The spelling of 16501996 in words is "sixteen million, five hundred one thousand, nine hundred ninety-six".