11650426654561 has 2 divisors, whose sum is σ = 11650426654562. Its totient is φ = 11650426654560.

The previous prime is 11650426654549. The next prime is 11650426654577. The reversal of 11650426654561 is 16545662405611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11573604000000 + 76822654561 = 3402000^2 + 277169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11650426654561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11650426654499 and 11650426654508.

It is not a weakly prime, because it can be changed into another prime (11650426654591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5825213327280 + 5825213327281.

It is an arithmetic number, because the mean of its divisors is an integer number (5825213327281).

Almost surely, 2^{11650426654561} is an apocalyptic number.

It is an amenable number.

11650426654561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11650426654561 is an equidigital number, since it uses as much as digits as its factorization.

11650426654561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 11650426654561 in words is "eleven trillion, six hundred fifty billion, four hundred twenty-six million, six hundred fifty-four thousand, five hundred sixty-one".