105104555538 has 32 divisors (see below), whose sum is σ = 222604070400. Its totient is φ = 32969575680.

The previous prime is 105104555489. The next prime is 105104555539. The reversal of 105104555538 is 835555401501.

It is a super-2 number, since 2×105104555538² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105104555538.

It is not an unprimeable number, because it can be changed into a prime (105104555539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745983 + ... + 875613.

It is an arithmetic number, because the mean of its divisors is an integer number (6956377200).

Almost surely, 2^105104555538 is an apocalyptic number.

105104555538 is an abundant number, since it is smaller than the sum of its proper divisors (117499514862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105104555538 is a wasteful number, since it uses less digits than its factorization.

105104555538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137602.

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 105104555538 in words is "one hundred five billion, one hundred four million, five hundred fifty-five thousand, five hundred thirty-eight".