16808069690880 has 1280 divisors, whose sum is σ = 61277869965312. Its totient is φ = 3901685760000.

The previous prime is 16808069690851. The next prime is 16808069690897. The reversal of 16808069690880 is 8809696080861.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a super-2 number, since 2×16808069690880² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23977274530 + ... + 23977275230.

Almost surely, 2^{16808069690880} is an apocalyptic number.

16808069690880 is a gapful number since it is divisible by the number (10) 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 16808069690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30638934982656).

16808069690880 is an abundant number, since it is smaller than the sum of its proper divisors (44469800274432).

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

16808069690880 is a wasteful number, since it uses less digits than its factorization.

16808069690880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 69.

The spelling of 16808069690880 in words is "sixteen trillion, eight hundred eight billion, sixty-nine million, six hundred ninety thousand, eight hundred eighty".