105845815318 has 4 divisors (see below), whose sum is σ = 158768722980. Its totient is φ = 52922907658.

The previous prime is 105845815279. The next prime is 105845815319. The reversal of 105845815318 is 813518548501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×105845815318² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105845815319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26461453828 + ... + 26461453831.

It is an arithmetic number, because the mean of its divisors is an integer number (39692180745).

Almost surely, 2^105845815318 is an apocalyptic number.

105845815318 is a deficient number, since it is larger than the sum of its proper divisors (52922907662).

105845815318 is an equidigital number, since it uses as much as digits as its factorization.

105845815318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52922907661.

The product of its (nonzero) digits is 768000, while the sum is 49.

The spelling of 105845815318 in words is "one hundred five billion, eight hundred forty-five million, eight hundred fifteen thousand, three hundred eighteen".