10505555555506 has 24 divisors (see below), whose sum is σ = 18074236444992. Its totient is φ = 4567632847800.

The previous prime is 10505555555503. The next prime is 10505555555531. The reversal of 10505555555506 is 60555555550501.

It is a happy number.

It is a super-2 number, since 2×10505555555506² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10505555555503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 943720230 + ... + 943731361.

It is an arithmetic number, because the mean of its divisors is an integer number (753093185208).

Almost surely, 2^{10505555555506} is an apocalyptic number.

10505555555506 is a deficient number, since it is larger than the sum of its proper divisors (7568680889486).

10505555555506 is a wasteful number, since it uses less digits than its factorization.

10505555555506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887451638 (or 1887451627 counting only the distinct ones).

The product of its (nonzero) digits is 11718750, while the sum is 52.

The spelling of 10505555555506 in words is "ten trillion, five hundred five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred six".