10001100555001 has 8 divisors (see below), whose sum is σ = 10117043649440. Its totient is φ = 9885419480448.

The previous prime is 10001100554971. The next prime is 10001100555007. The reversal of 10001100555001 is 10055500110001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10001100555001 - 2⁵ = 10001100554969 is a prime.

It is a super-2 number, since 2×10001100555001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10001100555001.

It is not an unprimeable number, because it can be changed into a prime (10001100555007) 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, 65428191 + ... + 65580868.

It is an arithmetic number, because the mean of its divisors is an integer number (1264630456180).

Almost surely, 2^{10001100555001} is an apocalyptic number.

It is an amenable number.

10001100555001 is a deficient number, since it is larger than the sum of its proper divisors (115943094439).

10001100555001 is an equidigital number, since it uses as much as digits as its factorization.

10001100555001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131009943.

The product of its (nonzero) digits is 125, while the sum is 19.

Adding to 10001100555001 its reverse (10055500110001), we get a palindrome (20056600665002).

It can be divided in two parts, 10001 and 100555001, that multiplied together give a palindrome (1005650565001).

The spelling of 10001100555001 in words is "ten trillion, one billion, one hundred million, five hundred fifty-five thousand, one".