1065056661049 has 2 divisors, whose sum is σ = 1065056661050. Its totient is φ = 1065056661048.

The previous prime is 1065056661001. The next prime is 1065056661061. The reversal of 1065056661049 is 9401666505601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 740563513600 + 324493147449 = 860560^2 + 569643^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065056661049 - 2²³ = 1065048272441 is a prime.

It is a super-2 number, since 2×1065056661049² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1065056660993 and 1065056661011.

It is not a weakly prime, because it can be changed into another prime (1065056161049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532528330524 + 532528330525.

It is an arithmetic number, because the mean of its divisors is an integer number (532528330525).

Almost surely, 2^{1065056661049} is an apocalyptic number.

It is an amenable number.

1065056661049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065056661049 is an equidigital number, since it uses as much as digits as its factorization.

1065056661049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 1065056661049 in words is "one trillion, sixty-five billion, fifty-six million, six hundred sixty-one thousand, forty-nine".