105143016784 has 80 divisors (see below), whose sum is σ = 225329577984. Its totient is φ = 47218867200.

The previous prime is 105143016733. The next prime is 105143016841. The reversal of 105143016784 is 487610341501.

It is a super-2 number, since 2×105143016784² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3250129 + ... + 3282319.

Almost surely, 2^105143016784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105143016784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112664788992).

105143016784 is an abundant number, since it is smaller than the sum of its proper divisors (120186561200).

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

105143016784 is a wasteful number, since it uses less digits than its factorization.

105143016784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32636 (or 32630 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 105143016784 in words is "one hundred five billion, one hundred forty-three million, sixteen thousand, seven hundred eighty-four".