11610566605550 has 24 divisors (see below), whose sum is σ = 23558895149832. Its totient is φ = 4222024220000.

The previous prime is 11610566605549. The next prime is 11610566605579. The reversal of 11610566605550 is 5550666501611.

It is a junction number, because it is equal to n+sod(n) for n = 11610566605495 and 11610566605504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10555060001 + ... + 10555061100.

It is an arithmetic number, because the mean of its divisors is an integer number (981620631243).

Almost surely, 2^{11610566605550} is an apocalyptic number.

11610566605550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11610566605550 is an abundant number, since it is smaller than the sum of its proper divisors (11948328544282).

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

11610566605550 is a wasteful number, since it uses less digits than its factorization.

11610566605550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21110121124 (or 21110121119 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 11610566605550 in words is "eleven trillion, six hundred ten billion, five hundred sixty-six million, six hundred five thousand, five hundred fifty".