105308178845 has 16 divisors (see below), whose sum is σ = 129921540672. Its totient is φ = 81897298560.

The previous prime is 105308178841. The next prime is 105308178901. The reversal of 105308178845 is 548871803501.

It is not a de Polignac number, because 105308178845 - 2² = 105308178841 is a prime.

It is a super-2 number, since 2×105308178845² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105308178793 and 105308178802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105308178841) 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, 1115312 + ... + 1206041.

It is an arithmetic number, because the mean of its divisors is an integer number (8120096292).

Almost surely, 2^105308178845 is an apocalyptic number.

It is an amenable number.

105308178845 is a deficient number, since it is larger than the sum of its proper divisors (24613361827).

105308178845 is a wasteful number, since it uses less digits than its factorization.

105308178845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321612.

The product of its (nonzero) digits is 1075200, while the sum is 50.

The spelling of 105308178845 in words is "one hundred five billion, three hundred eight million, one hundred seventy-eight thousand, eight hundred forty-five".