105545605423 has 16 divisors (see below), whose sum is σ = 106895820096. Its totient is φ = 104204897280.

The previous prime is 105545605387. The next prime is 105545605519. The reversal of 105545605423 is 324506545501.

It is a cyclic number.

It is not a de Polignac number, because 105545605423 - 2⁹ = 105545604911 is a prime.

It is a super-2 number, since 2×105545605423² (a number of 23 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 (105545605223) 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, 42166390 + ... + 42168892.

It is an arithmetic number, because the mean of its divisors is an integer number (6680988756).

Almost surely, 2^105545605423 is an apocalyptic number.

105545605423 is a deficient number, since it is larger than the sum of its proper divisors (1350214673).

105545605423 is a wasteful number, since it uses less digits than its factorization.

105545605423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 105545605423 in words is "one hundred five billion, five hundred forty-five million, six hundred five thousand, four hundred twenty-three".