16543164498 has 192 divisors, whose sum is σ = 40725929088. Its totient is φ = 4461972480.

The previous prime is 16543164493. The next prime is 16543164509. The reversal of 16543164498 is 89446134561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16543164498.

It is not an unprimeable number, because it can be changed into a prime (16543164493) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71000590 + ... + 71000822.

It is an arithmetic number, because the mean of its divisors is an integer number (212114214).

Almost surely, 2^16543164498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16543164498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20362964544).

16543164498 is an abundant number, since it is smaller than the sum of its proper divisors (24182764590).

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

16543164498 is a wasteful number, since it uses less digits than its factorization.

16543164498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 450 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 16543164498 in words is "sixteen billion, five hundred forty-three million, one hundred sixty-four thousand, four hundred ninety-eight".