16668498 has 64 divisors (see below), whose sum is σ = 42071040. Its totient is φ = 4276800.

The previous prime is 16668497. The next prime is 16668499. The reversal of 16668498 is 89486661.

It is an interprime number because it is at equal distance from previous prime (16668497) and next prime (16668499).

It is not an unprimeable number, because it can be changed into a prime (16668493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50193 + ... + 50523.

It is an arithmetic number, because the mean of its divisors is an integer number (657360).

Almost surely, 2^16668498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16668498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21035520).

16668498 is an abundant number, since it is smaller than the sum of its proper divisors (25402542).

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

16668498 is a wasteful number, since it uses less digits than its factorization.

16668498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its digits is 497664, while the sum is 48.

The square root of 16668498 is about 4082.7071900885. The cubic root of 16668498 is about 255.4458329086.

The spelling of 16668498 in words is "sixteen million, six hundred sixty-eight thousand, four hundred ninety-eight".