1010551105556 has 24 divisors (see below), whose sum is σ = 1788443453160. Its totient is φ = 499567951872.

The previous prime is 1010551105519. The next prime is 1010551105559. The reversal of 1010551105556 is 6555011550101.

It can be written as a sum of positive squares in 4 ways, for example, as 159792067600 + 850759037956 = 399740^2 + 922366^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010551105559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6485150 + ... + 6639146.

It is an arithmetic number, because the mean of its divisors is an integer number (74518477215).

Almost surely, 2^{1010551105556} is an apocalyptic number.

It is an amenable number.

1010551105556 is a deficient number, since it is larger than the sum of its proper divisors (777892347604).

1010551105556 is a wasteful number, since it uses less digits than its factorization.

1010551105556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172523 (or 172521 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

Adding to 1010551105556 its reverse (6555011550101), we get a palindrome (7565562655657).

The spelling of 1010551105556 in words is "one trillion, ten billion, five hundred fifty-one million, one hundred five thousand, five hundred fifty-six".