120665000647 has 2 divisors, whose sum is σ = 120665000648. Its totient is φ = 120665000646.

The previous prime is 120665000627. The next prime is 120665000699. The reversal of 120665000647 is 746000566021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120665000647 - 2¹¹ = 120664998599 is a prime.

It is a super-2 number, since 2×120665000647² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120665000627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60332500323 + 60332500324.

It is an arithmetic number, because the mean of its divisors is an integer number (60332500324).

Almost surely, 2^120665000647 is an apocalyptic number.

120665000647 is a deficient number, since it is larger than the sum of its proper divisors (1).

120665000647 is an equidigital number, since it uses as much as digits as its factorization.

120665000647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 120665000647 its reverse (746000566021), we get a palindrome (866665566668).

The spelling of 120665000647 in words is "one hundred twenty billion, six hundred sixty-five million, six hundred forty-seven", and thus it is an aban number.