105105523445 has 16 divisors (see below), whose sum is σ = 142977555840. Its totient is φ = 73531312704.

The previous prime is 105105523427. The next prime is 105105523489. The reversal of 105105523445 is 544325501501.

It is a cyclic number.

It is not a de Polignac number, because 105105523445 - 2¹² = 105105519349 is a prime.

It is a super-3 number, since 3×105105523445³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42551609 + ... + 42554078.

It is an arithmetic number, because the mean of its divisors is an integer number (8936097240).

Almost surely, 2^105105523445 is an apocalyptic number.

It is an amenable number.

105105523445 is a deficient number, since it is larger than the sum of its proper divisors (37872032395).

105105523445 is a wasteful number, since it uses less digits than its factorization.

105105523445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85105724.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 105105523445 in words is "one hundred five billion, one hundred five million, five hundred twenty-three thousand, four hundred forty-five".