65955667 has 2 divisors, whose sum is σ = 65955668. Its totient is φ = 65955666.

The previous prime is 65955661. The next prime is 65955683. The reversal of 65955667 is 76655956.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65955667 - 2¹¹ = 65953619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65955667.

It is not a weakly prime, because it can be changed into another prime (65955661) 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, 32977833 + 32977834.

It is an arithmetic number, because the mean of its divisors is an integer number (32977834).

Almost surely, 2^65955667 is an apocalyptic number.

65955667 is a deficient number, since it is larger than the sum of its proper divisors (1).

65955667 is an equidigital number, since it uses as much as digits as its factorization.

65955667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1701000, while the sum is 49.

The square root of 65955667 is about 8121.3094387543. The cubic root of 65955667 is about 404.0334967978.

The spelling of 65955667 in words is "sixty-five million, nine hundred fifty-five thousand, six hundred sixty-seven".