16916626868280 has 256 divisors, whose sum is σ = 52511763456000. Its totient is φ = 4357070635008.

The previous prime is 16916626868249. The next prime is 16916626868291. The reversal of 16916626868280 is 8286862661961.

It is a super-2 number, since 2×16916626868280² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1023443056 + ... + 1023459584.

It is an arithmetic number, because the mean of its divisors is an integer number (205124076000).

Almost surely, 2^{16916626868280} is an apocalyptic number.

16916626868280 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 16916626868280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26255881728000).

16916626868280 is an abundant number, since it is smaller than the sum of its proper divisors (35595136587720).

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

16916626868280 is a wasteful number, since it uses less digits than its factorization.

16916626868280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18966 (or 18962 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 69.

The spelling of 16916626868280 in words is "sixteen trillion, nine hundred sixteen billion, six hundred twenty-six million, eight hundred sixty-eight thousand, two hundred eighty".