105550543312 has 20 divisors (see below), whose sum is σ = 204511346820. Its totient is φ = 52773421568.

The previous prime is 105550543291. The next prime is 105550543331. The reversal of 105550543312 is 213345055501.

It can be written as a sum of positive squares in 2 ways, for example, as 26096463936 + 79454079376 = 161544^2 + 281876^2 .

It is a super-2 number, since 2×105550543312² (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 3 ways as a sum of consecutive naturals, for example, 434298 + ... + 632230.

It is an arithmetic number, because the mean of its divisors is an integer number (10225567341).

Almost surely, 2^105550543312 is an apocalyptic number.

It is an amenable number.

105550543312 is a deficient number, since it is larger than the sum of its proper divisors (98960803508).

105550543312 is a wasteful number, since it uses less digits than its factorization.

105550543312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231270 (or 231264 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 105550543312 its reverse (213345055501), we get a palindrome (318895598813).

The spelling of 105550543312 in words is "one hundred five billion, five hundred fifty million, five hundred forty-three thousand, three hundred twelve".