16887297208320 has 2496 divisors, whose sum is σ = 76497986912256. Its totient is φ = 3471385559040.

The previous prime is 16887297208273. The next prime is 16887297208337. The reversal of 16887297208320 is 2380279278861.

16887297208320 is a `hidden beast` number, since 1 + 6 + 8 + 87 + 29 + 7 + 208 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 48666562387 + ... + 48666562733.

It is an arithmetic number, because the mean of its divisors is an integer number (30648231936).

Almost surely, 2^{16887297208320} is an apocalyptic number.

16887297208320 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 16887297208320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38248993456128).

16887297208320 is an abundant number, since it is smaller than the sum of its proper divisors (59610689703936).

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

16887297208320 is a wasteful number, since it uses less digits than its factorization.

16887297208320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 16887297208320 in words is "sixteen trillion, eight hundred eighty-seven billion, two hundred ninety-seven million, two hundred eight thousand, three hundred twenty".