10611105505550 has 96 divisors (see below), whose sum is σ = 21747236150304. Its totient is φ = 3819824640000.

The previous prime is 10611105505543. The next prime is 10611105505579. The reversal of 10611105505550 is 5550550111601.

It is a super-2 number, since 2×10611105505550² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10611105505550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 697311542 + ... + 697326758.

It is an arithmetic number, because the mean of its divisors is an integer number (226533709899).

Almost surely, 2^{10611105505550} is an apocalyptic number.

10611105505550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10611105505550 is an abundant number, since it is smaller than the sum of its proper divisors (11136130644754).

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

10611105505550 is a wasteful number, since it uses less digits than its factorization.

10611105505550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27894 (or 27889 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 10611105505550 in words is "ten trillion, six hundred eleven billion, one hundred five million, five hundred five thousand, five hundred fifty".