100551051005543 has 4 divisors (see below), whose sum is σ = 100552737342840. Its totient is φ = 100549364668248.

The previous prime is 100551051005533. The next prime is 100551051005591. The reversal of 100551051005543 is 345500150155001.

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 100551051005543 - 2¹⁸ = 100551050743399 is a prime.

It is a super-2 number, since 2×100551051005543² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100551051005513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843079205 + ... + 843198462.

It is an arithmetic number, because the mean of its divisors is an integer number (25138184335710).

Almost surely, 2^{100551051005543} is an apocalyptic number.

100551051005543 is a deficient number, since it is larger than the sum of its proper divisors (1686337297).

100551051005543 is an equidigital number, since it uses as much as digits as its factorization.

100551051005543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686337296.

The product of its (nonzero) digits is 37500, while the sum is 35.

The spelling of 100551051005543 in words is "one hundred trillion, five hundred fifty-one billion, fifty-one million, five thousand, five hundred forty-three".