11546604105561 has 24 divisors (see below), whose sum is σ = 19062634830720. Its totient is φ = 6597514613376.

The previous prime is 11546604105559. The next prime is 11546604105593. The reversal of 11546604105561 is 16550140664511.

It is a happy number.

11546604105561 is a `hidden beast` number, since 1 + 1 + 5 + 46 + 6 + 0 + 41 + 0 + 5 + 561 = 666.

11546604105561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11546604105561 - 2¹ = 11546604105559 is a prime.

It is a super-2 number, since 2×11546604105561² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11546604105551) 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, 6798160 + ... + 8325153.

It is an arithmetic number, because the mean of its divisors is an integer number (794276451280).

Almost surely, 2^{11546604105561} is an apocalyptic number.

It is an amenable number.

11546604105561 is a deficient number, since it is larger than the sum of its proper divisors (7516030725159).

11546604105561 is a wasteful number, since it uses less digits than its factorization.

11546604105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135445 (or 15135442 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 11546604105561 in words is "eleven trillion, five hundred forty-six billion, six hundred four million, one hundred five thousand, five hundred sixty-one".