16869664514680 has 128 divisors (see below), whose sum is σ = 41389074892800. Its totient is φ = 6164635507200.

The previous prime is 16869664514663. The next prime is 16869664514753. The reversal of 16869664514680 is 8641546696861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5402410 + ... + 7932550.

It is an arithmetic number, because the mean of its divisors is an integer number (323352147600).

Almost surely, 2^{16869664514680} is an apocalyptic number.

16869664514680 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 16869664514680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20694537446400).

16869664514680 is an abundant number, since it is smaller than the sum of its proper divisors (24519410378120).

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

16869664514680 is a wasteful number, since it uses less digits than its factorization.

16869664514680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530485 (or 2530481 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 70.

The spelling of 16869664514680 in words is "sixteen trillion, eight hundred sixty-nine billion, six hundred sixty-four million, five hundred fourteen thousand, six hundred eighty".