105655418879 has 4 divisors (see below), whose sum is σ = 106364515800. Its totient is φ = 104946321960.

The previous prime is 105655418851. The next prime is 105655418929. The reversal of 105655418879 is 978814556501.

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

It is a cyclic number.

It is not a de Polignac number, because 105655418879 - 2¹⁶ = 105655353343 is a prime.

It is a super-2 number, since 2×105655418879² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105655418819) 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, 354548237 + ... + 354548534.

It is an arithmetic number, because the mean of its divisors is an integer number (26591128950).

Almost surely, 2^105655418879 is an apocalyptic number.

105655418879 is a deficient number, since it is larger than the sum of its proper divisors (709096921).

105655418879 is an equidigital number, since it uses as much as digits as its factorization.

105655418879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709096920.

The product of its (nonzero) digits is 12096000, while the sum is 59.

The spelling of 105655418879 in words is "one hundred five billion, six hundred fifty-five million, four hundred eighteen thousand, eight hundred seventy-nine".