10561005111050 has 24 divisors (see below), whose sum is σ = 19650964397292. Its totient is φ = 4222790240000.

The previous prime is 10561005111031. The next prime is 10561005111091. The reversal of 10561005111050 is 5011150016501.

It can be written as a sum of positive squares in 6 ways, for example, as 6641274322489 + 3919730788561 = 2577067^2 + 1979831^2 .

It is a super-2 number, since 2×10561005111050² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40162751 + ... + 40424850.

Almost surely, 2^{10561005111050} is an apocalyptic number.

10561005111050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10561005111050 is a deficient number, since it is larger than the sum of its proper divisors (9089959286242).

10561005111050 is a wasteful number, since it uses less digits than its factorization.

10561005111050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80590234 (or 80590229 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 26.

Adding to 10561005111050 its reverse (5011150016501), we get a palindrome (15572155127551).

The spelling of 10561005111050 in words is "ten trillion, five hundred sixty-one billion, five million, one hundred eleven thousand, fifty".