11055011010561 has 64 divisors (see below), whose sum is σ = 18741577305600. Its totient is φ = 6309021312000.

The previous prime is 11055011010553. The next prime is 11055011010587. The reversal of 11055011010561 is 16501011055011.

11055011010561 is a `hidden beast` number, since 1 + 1 + 0 + 5 + 501 + 101 + 0 + 56 + 1 = 666.

It is not a de Polignac number, because 11055011010561 - 2³ = 11055011010553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11055011010541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 516554461 + ... + 516575861.

It is an arithmetic number, because the mean of its divisors is an integer number (292837145400).

Almost surely, 2^{11055011010561} is an apocalyptic number.

It is an amenable number.

11055011010561 is a deficient number, since it is larger than the sum of its proper divisors (7686566295039).

11055011010561 is a wasteful number, since it uses less digits than its factorization.

11055011010561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24807 (or 24801 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 27.

Adding to 11055011010561 its reverse (16501011055011), we get a palindrome (27556022065572).

The spelling of 11055011010561 in words is "eleven trillion, fifty-five billion, eleven million, ten thousand, five hundred sixty-one".