65611056541 has 2 divisors, whose sum is σ = 65611056542. Its totient is φ = 65611056540.

The previous prime is 65611056529. The next prime is 65611056647. The reversal of 65611056541 is 14565011656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65574405625 + 36650916 = 256075^2 + 6054^2 .

It is a cyclic number.

It is not a de Polignac number, because 65611056541 - 2⁹ = 65611056029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65611056494 and 65611056503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65611056041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32805528270 + 32805528271.

It is an arithmetic number, because the mean of its divisors is an integer number (32805528271).

Almost surely, 2^65611056541 is an apocalyptic number.

It is an amenable number.

65611056541 is a deficient number, since it is larger than the sum of its proper divisors (1).

65611056541 is an equidigital number, since it uses as much as digits as its factorization.

65611056541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 65611056541 in words is "sixty-five billion, six hundred eleven million, fifty-six thousand, five hundred forty-one".