105011005555591 has 4 divisors (see below), whose sum is σ = 105011676541800. Its totient is φ = 105010334569384.

The previous prime is 105011005555571. The next prime is 105011005555657. The reversal of 105011005555591 is 195555500110501.

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 105011005555591 - 2³⁵ = 104976645817223 is a prime.

It is a super-2 number, since 2×105011005555591² (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 (105011005555571) 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, 335258296 + ... + 335571373.

It is an arithmetic number, because the mean of its divisors is an integer number (26252919135450).

Almost surely, 2^{105011005555591} is an apocalyptic number.

105011005555591 is a deficient number, since it is larger than the sum of its proper divisors (670986209).

105011005555591 is an equidigital number, since it uses as much as digits as its factorization.

105011005555591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670986208.

The product of its (nonzero) digits is 140625, while the sum is 43.

The spelling of 105011005555591 in words is "one hundred five trillion, eleven billion, five million, five hundred fifty-five thousand, five hundred ninety-one".