100555600110561 has 48 divisors (see below), whose sum is σ = 153002720557440. Its totient is φ = 63462634583040.

The previous prime is 100555600110533. The next prime is 100555600110601. The reversal of 100555600110561 is 165011006555001.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-100555600110561 is a prime.

It is a super-2 number, since 2×100555600110561² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100555600190561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2592221076 + ... + 2592259866.

It is an arithmetic number, because the mean of its divisors is an integer number (3187556678280).

Almost surely, 2^{100555600110561} is an apocalyptic number.

It is an amenable number.

100555600110561 is a deficient number, since it is larger than the sum of its proper divisors (52447120446879).

100555600110561 is a wasteful number, since it uses less digits than its factorization.

100555600110561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49446 (or 49443 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

Adding to 100555600110561 its reverse (165011006555001), we get a palindrome (265566606665562).

The spelling of 100555600110561 in words is "one hundred trillion, five hundred fifty-five billion, six hundred million, one hundred ten thousand, five hundred sixty-one".