65607272377 has 2 divisors, whose sum is σ = 65607272378. Its totient is φ = 65607272376.

The previous prime is 65607272309. The next prime is 65607272383. The reversal of 65607272377 is 77327270656.

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., 44222304681 + 21384967696 = 210291^2 + 146236^2 .

It is a cyclic number.

It is not a de Polignac number, because 65607272377 - 2⁷ = 65607272249 is a prime.

It is not a weakly prime, because it can be changed into another prime (65607278377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32803636188 + 32803636189.

It is an arithmetic number, because the mean of its divisors is an integer number (32803636189).

Almost surely, 2^65607272377 is an apocalyptic number.

It is an amenable number.

65607272377 is a deficient number, since it is larger than the sum of its proper divisors (1).

65607272377 is an equidigital number, since it uses as much as digits as its factorization.

65607272377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5186160, while the sum is 52.

The spelling of 65607272377 in words is "sixty-five billion, six hundred seven million, two hundred seventy-two thousand, three hundred seventy-seven".