1065662551417 has 2 divisors, whose sum is σ = 1065662551418. Its totient is φ = 1065662551416.

The previous prime is 1065662551411. The next prime is 1065662551441. The reversal of 1065662551417 is 7141552665601.

1065662551417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 825370433001 + 240292118416 = 908499^2 + 490196^2 .

It is an emirp because it is prime and its reverse (7141552665601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065662551417 is a prime.

It is a super-2 number, since 2×1065662551417² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1065662551411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532831275708 + 532831275709.

It is an arithmetic number, because the mean of its divisors is an integer number (532831275709).

Almost surely, 2^{1065662551417} is an apocalyptic number.

It is an amenable number.

1065662551417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065662551417 is an equidigital number, since it uses as much as digits as its factorization.

1065662551417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 1065662551417 in words is "one trillion, sixty-five billion, six hundred sixty-two million, five hundred fifty-one thousand, four hundred seventeen".