105520450412 has 24 divisors (see below), whose sum is σ = 198874653600. Its totient is φ = 48699495936.

The previous prime is 105520450403. The next prime is 105520450429. The reversal of 105520450412 is 214054025501.

It is a super-2 number, since 2×105520450412² (a number of 23 digits) contains 22 as substring.

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, 1732289 + ... + 1792167.

It is an arithmetic number, because the mean of its divisors is an integer number (8286443900).

Almost surely, 2^105520450412 is an apocalyptic number.

It is an amenable number.

105520450412 is a deficient number, since it is larger than the sum of its proper divisors (93354203188).

105520450412 is a wasteful number, since it uses less digits than its factorization.

105520450412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93785 (or 93783 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 105520450412 its reverse (214054025501), we get a palindrome (319574475913).

The spelling of 105520450412 in words is "one hundred five billion, five hundred twenty million, four hundred fifty thousand, four hundred twelve".