16797485859840 has 1760 divisors, whose sum is σ = 74814948172800. Its totient is φ = 3515530346496.

The previous prime is 16797485859839. The next prime is 16797485859871. The reversal of 16797485859840 is 4895858479761.

16797485859840 is a `hidden beast` number, since 1 + 6 + 7 + 9 + 7 + 485 + 8 + 5 + 98 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 16797485859840.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1826007561 + ... + 1826016759.

It is an arithmetic number, because the mean of its divisors is an integer number (42508493280).

Almost surely, 2^{16797485859840} is an apocalyptic number.

16797485859840 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 16797485859840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37407474086400).

16797485859840 is an abundant number, since it is smaller than the sum of its proper divisors (58017462312960).

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

16797485859840 is a wasteful number, since it uses less digits than its factorization.

16797485859840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9297 (or 9270 counting only the distinct ones).

The product of its (nonzero) digits is 4877107200, while the sum is 81.

The spelling of 16797485859840 in words is "sixteen trillion, seven hundred ninety-seven billion, four hundred eighty-five million, eight hundred fifty-nine thousand, eight hundred forty".