11730900561 has 16 divisors (see below), whose sum is σ = 16467882240. Its totient is φ = 7407432720.

The previous prime is 11730900509. The next prime is 11730900581. The reversal of 11730900561 is 16500903711.

It is a happy number.

It is not a de Polignac number, because 11730900561 - 2³³ = 3140965969 is a prime.

It is a super-3 number, since 3×11730900561³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (11730900581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291346 + ... + 329156.

It is an arithmetic number, because the mean of its divisors is an integer number (1029242640).

Almost surely, 2^11730900561 is an apocalyptic number.

It is an amenable number.

11730900561 is a deficient number, since it is larger than the sum of its proper divisors (4736981679).

11730900561 is a wasteful number, since it uses less digits than its factorization.

11730900561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43276.

The product of its (nonzero) digits is 5670, while the sum is 33.

The spelling of 11730900561 in words is "eleven billion, seven hundred thirty million, nine hundred thousand, five hundred sixty-one".