10011005105550 has 48 divisors (see below), whose sum is σ = 25197849293952. Its totient is φ = 2629756562400.

The previous prime is 10011005105501. The next prime is 10011005105551. The reversal of 10011005105550 is 5550150011001.

It is a self number, because there is not a number n which added to its sum of digits gives 10011005105550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011005105551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498049906 + ... + 498070005.

It is an arithmetic number, because the mean of its divisors is an integer number (524955193624).

Almost surely, 2^{10011005105550} is an apocalyptic number.

10011005105550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10011005105550 is an abundant number, since it is smaller than the sum of its proper divisors (15186844188402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10011005105550 is a wasteful number, since it uses less digits than its factorization.

10011005105550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996119993 (or 996119988 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 24.

Adding to 10011005105550 its reverse (5550150011001), we get a palindrome (15561155116551).

The spelling of 10011005105550 in words is "ten trillion, eleven billion, five million, one hundred five thousand, five hundred fifty".