105775776220 has 24 divisors (see below), whose sum is σ = 222474614544. Its totient is φ = 42244503936.

The previous prime is 105775776217. The next prime is 105775776241. The reversal of 105775776220 is 22677577501.

It is a happy number.

It is a super-2 number, since 2×105775776220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4099729 + ... + 4125448.

It is an arithmetic number, because the mean of its divisors is an integer number (9269775606).

Almost surely, 2^105775776220 is an apocalyptic number.

105775776220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105775776220 is an abundant number, since it is smaller than the sum of its proper divisors (116698838324).

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

105775776220 is a wasteful number, since it uses less digits than its factorization.

105775776220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225829 (or 8225827 counting only the distinct ones).

The product of its (nonzero) digits is 1440600, while the sum is 49.

The spelling of 105775776220 in words is "one hundred five billion, seven hundred seventy-five million, seven hundred seventy-six thousand, two hundred twenty".