100641436543 has 4 divisors (see below), whose sum is σ = 103887934528. Its totient is φ = 97394938560.

The previous prime is 100641436529. The next prime is 100641436561. The reversal of 100641436543 is 345634146001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100641436543 - 2²¹ = 100639339391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100641436523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623248946 + ... + 1623249007.

It is an arithmetic number, because the mean of its divisors is an integer number (25971983632).

Almost surely, 2^100641436543 is an apocalyptic number.

100641436543 is a deficient number, since it is larger than the sum of its proper divisors (3246497985).

100641436543 is an equidigital number, since it uses as much as digits as its factorization.

100641436543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246497984.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 100641436543 in words is "one hundred billion, six hundred forty-one million, four hundred thirty-six thousand, five hundred forty-three".