105505544220 has 48 divisors (see below), whose sum is σ = 310963712640. Its totient is φ = 26654031936.

The previous prime is 105505544197. The next prime is 105505544233. The reversal of 105505544220 is 22445505501.

It is a super-2 number, since 2×105505544220² (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 15 ways as a sum of consecutive naturals, for example, 46273222 + ... + 46275501.

It is an arithmetic number, because the mean of its divisors is an integer number (6478410680).

Almost surely, 2^105505544220 is an apocalyptic number.

105505544220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105505544220 is an abundant number, since it is smaller than the sum of its proper divisors (205458168420).

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

105505544220 is a wasteful number, since it uses less digits than its factorization.

105505544220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92548754 (or 92548752 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 105505544220 in words is "one hundred five billion, five hundred five million, five hundred forty-four thousand, two hundred twenty".