16545789870 has 64 divisors (see below), whose sum is σ = 41104613376. Its totient is φ = 4259122560.

The previous prime is 16545789863. The next prime is 16545789881. The reversal of 16545789870 is 7898754561.

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, 82285 + ... + 199655.

It is an arithmetic number, because the mean of its divisors is an integer number (642259584).

Almost surely, 2^16545789870 is an apocalyptic number.

16545789870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16545789870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20552306688).

16545789870 is an abundant number, since it is smaller than the sum of its proper divisors (24558823506).

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

16545789870 is a wasteful number, since it uses less digits than its factorization.

16545789870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117545.

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 16545789870 in words is "sixteen billion, five hundred forty-five million, seven hundred eighty-nine thousand, eight hundred seventy".