105545221060 has 24 divisors (see below), whose sum is σ = 222203280600. Its totient is φ = 42111742464.

The previous prime is 105545221051. The next prime is 105545221087. The reversal of 105545221060 is 60122545501.

It can be written as a sum of positive squares in 4 ways, for example, as 9069133824 + 96476087236 = 95232^2 + 310606^2 .

It is a super-2 number, since 2×105545221060² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6638485 + ... + 6654364.

It is an arithmetic number, because the mean of its divisors is an integer number (9258470025).

Almost surely, 2^105545221060 is an apocalyptic number.

105545221060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105545221060 is an abundant number, since it is smaller than the sum of its proper divisors (116658059540).

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

105545221060 is a wasteful number, since it uses less digits than its factorization.

105545221060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13293255 (or 13293253 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 105545221060 its reverse (60122545501), we get a palindrome (165667766561).

The spelling of 105545221060 in words is "one hundred five billion, five hundred forty-five million, two hundred twenty-one thousand, sixty".