11561303144651 has 12 divisors (see below), whose sum is σ = 12705895652472. Its totient is φ = 10512688957056.

The previous prime is 11561303144647. The next prime is 11561303144669. The reversal of 11561303144651 is 15644130316511.

It is not a de Polignac number, because 11561303144651 - 2² = 11561303144647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11561303144599 and 11561303144608.

It is not an unprimeable number, because it can be changed into a prime (11561303144851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510511646 + ... + 510534291.

It is an arithmetic number, because the mean of its divisors is an integer number (1058824637706).

Almost surely, 2^{11561303144651} is an apocalyptic number.

11561303144651 is a deficient number, since it is larger than the sum of its proper divisors (1144592507821).

11561303144651 is a wasteful number, since it uses less digits than its factorization.

11561303144651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021046030 (or 1021046017 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 11561303144651 in words is "eleven trillion, five hundred sixty-one billion, three hundred three million, one hundred forty-four thousand, six hundred fifty-one".