105550433405 has 16 divisors (see below), whose sum is σ = 127226199744. Its totient is φ = 84063552000.

The previous prime is 105550433399. The next prime is 105550433407. The reversal of 105550433405 is 504334055501.

It is not a de Polignac number, because 105550433405 - 2²⁸ = 105281997949 is a prime.

It is a super-2 number, since 2×105550433405² (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 (105550433407) 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, 2745677 + ... + 2783853.

It is an arithmetic number, because the mean of its divisors is an integer number (7951637484).

Almost surely, 2^105550433405 is an apocalyptic number.

It is an amenable number.

105550433405 is a deficient number, since it is larger than the sum of its proper divisors (21675766339).

105550433405 is a wasteful number, since it uses less digits than its factorization.

105550433405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40636.

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 105550433405 its reverse (504334055501), we get a palindrome (609884488906).

The spelling of 105550433405 in words is "one hundred five billion, five hundred fifty million, four hundred thirty-three thousand, four hundred five".