16996518 has 48 divisors (see below), whose sum is σ = 45916416. Its totient is φ = 4414320.

The previous prime is 16996501. The next prime is 16996531. The reversal of 16996518 is 81569961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4746 + ... + 7517.

It is an arithmetic number, because the mean of its divisors is an integer number (956592).

Almost surely, 2^16996518 is an apocalyptic number.

16996518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16996518 is an abundant number, since it is smaller than the sum of its proper divisors (28919898).

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

16996518 is a wasteful number, since it uses less digits than its factorization.

16996518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12289 (or 12286 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 16996518 is about 4122.6833494703. The cubic root of 16996518 is about 257.1106025681.

The spelling of 16996518 in words is "sixteen million, nine hundred ninety-six thousand, five hundred eighteen".