16669642998 has 32 divisors (see below), whose sum is σ = 34544102400. Its totient is φ = 5359299296.

The previous prime is 16669642987. The next prime is 16669643083. The reversal of 16669642998 is 89924696661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425478 + ... + 463001.

It is an arithmetic number, because the mean of its divisors is an integer number (1079503200).

Almost surely, 2^16669642998 is an apocalyptic number.

16669642998 is an abundant number, since it is smaller than the sum of its proper divisors (17874459402).

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

16669642998 is a wasteful number, since it uses less digits than its factorization.

16669642998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888596.

The product of its digits is 60466176, while the sum is 66.

The spelling of 16669642998 in words is "sixteen billion, six hundred sixty-nine million, six hundred forty-two thousand, nine hundred ninety-eight".