105500373857 has 4 divisors (see below), whose sum is σ = 106544932116. Its totient is φ = 104455815600.

The previous prime is 105500373833. The next prime is 105500373863. The reversal of 105500373857 is 758373005501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 758373005501 = 32941 ⋅23022161.

It can be written as a sum of positive squares in 2 ways, for example, as 80338800481 + 25161573376 = 283441^2 + 158624^2 .

It is a cyclic number.

It is not a de Polignac number, because 105500373857 - 2¹⁰ = 105500372833 is a prime.

It is a super-2 number, since 2×105500373857² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105500373817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522278978 + ... + 522279179.

It is an arithmetic number, because the mean of its divisors is an integer number (26636233029).

Almost surely, 2^105500373857 is an apocalyptic number.

It is an amenable number.

105500373857 is a deficient number, since it is larger than the sum of its proper divisors (1044558259).

105500373857 is a wasteful number, since it uses less digits than its factorization.

105500373857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044558258.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 105500373857 in words is "one hundred five billion, five hundred million, three hundred seventy-three thousand, eight hundred fifty-seven".