16993550336 has 136 divisors (see below), whose sum is σ = 41145808320. Its totient is φ = 6851395584.

The previous prime is 16993550311. The next prime is 16993550381. The reversal of 16993550336 is 63305539961.

It is a tau number, because it is divible by the number of its divisors (136).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7797695 + ... + 7799873.

Almost surely, 2^16993550336 is an apocalyptic number.

16993550336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16993550336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20572904160).

16993550336 is an abundant number, since it is smaller than the sum of its proper divisors (24152257984).

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

16993550336 is an frugal number, since it uses more digits than its factorization.

16993550336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 50.

The spelling of 16993550336 in words is "sixteen billion, nine hundred ninety-three million, five hundred fifty thousand, three hundred thirty-six".