11055551060565 has 64 divisors (see below), whose sum is σ = 21537217658880. Its totient is φ = 5336229948480.

The previous prime is 11055551060551. The next prime is 11055551060621. The reversal of 11055551060565 is 56506015555011.

11055551060565 is a `hidden beast` number, since 1 + 10 + 5 + 5 + 5 + 5 + 10 + 60 + 565 = 666.

It is not a de Polignac number, because 11055551060565 - 2¹³ = 11055551052373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11055551060565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16361257 + ... + 17023566.

It is an arithmetic number, because the mean of its divisors is an integer number (336519025920).

Almost surely, 2^{11055551060565} is an apocalyptic number.

11055551060565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11055551060565 is a deficient number, since it is larger than the sum of its proper divisors (10481666598315).

11055551060565 is a wasteful number, since it uses less digits than its factorization.

11055551060565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33385071 (or 33385065 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 11055551060565 in words is "eleven trillion, fifty-five billion, five hundred fifty-one million, sixty thousand, five hundred sixty-five".