65554318079 has 2 divisors, whose sum is σ = 65554318080. Its totient is φ = 65554318078.

The previous prime is 65554318013. The next prime is 65554318097. The reversal of 65554318079 is 97081345556.

It is a happy number.

Together with next prime (65554318097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65554318079 - 2¹² = 65554313983 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65554318079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65554318009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32777159039 + 32777159040.

It is an arithmetic number, because the mean of its divisors is an integer number (32777159040).

Almost surely, 2^65554318079 is an apocalyptic number.

65554318079 is a deficient number, since it is larger than the sum of its proper divisors (1).

65554318079 is an equidigital number, since it uses as much as digits as its factorization.

65554318079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 65554318079 in words is "sixty-five billion, five hundred fifty-four million, three hundred eighteen thousand, seventy-nine".