1010050105561 has 8 divisors (see below), whose sum is σ = 1154877165824. Its totient is φ = 865356592320.

The previous prime is 1010050105501. The next prime is 1010050105627. The reversal of 1010050105561 is 1655010500101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010050105561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010050105501) 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, 33370545 + ... + 33400798.

It is an arithmetic number, because the mean of its divisors is an integer number (144359645728).

Almost surely, 2^{1010050105561} is an apocalyptic number.

It is an amenable number.

1010050105561 is a deficient number, since it is larger than the sum of its proper divisors (144827060263).

1010050105561 is an equidigital number, since it uses as much as digits as its factorization.

1010050105561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66773511.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 1010050105561 its reverse (1655010500101), we get a palindrome (2665060605662).

The spelling of 1010050105561 in words is "one trillion, ten billion, fifty million, one hundred five thousand, five hundred sixty-one".