100005500543 has 16 divisors (see below), whose sum is σ = 118295546880. Its totient is φ = 83651841504.

The previous prime is 100005500519. The next prime is 100005500557. The reversal of 100005500543 is 345005500001.

It is a cyclic number.

It is not a de Polignac number, because 100005500543 - 2¹⁰ = 100005499519 is a prime.

It is a super-2 number, since 2×100005500543² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100005500563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8796071 + ... + 8807432.

It is an arithmetic number, because the mean of its divisors is an integer number (7393471680).

Almost surely, 2^100005500543 is an apocalyptic number.

100005500543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100005500543 is a deficient number, since it is larger than the sum of its proper divisors (18290046337).

100005500543 is a wasteful number, since it uses less digits than its factorization.

100005500543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17603558.

The product of its (nonzero) digits is 1500, while the sum is 23.

The spelling of 100005500543 in words is "one hundred billion, five million, five hundred thousand, five hundred forty-three".