65417618148977 has 2 divisors, whose sum is σ = 65417618148978. Its totient is φ = 65417618148976.

The previous prime is 65417618148923. The next prime is 65417618148991. The reversal of 65417618148977 is 77984181671456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63775301571136 + 1642316577841 = 7985944^2 + 1281529^2 .

It is a cyclic number.

It is not a de Polignac number, because 65417618148977 - 2³⁸ = 65142740242033 is a prime.

It is a super-2 number, since 2×65417618148977² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65417618148677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32708809074488 + 32708809074489.

It is an arithmetic number, because the mean of its divisors is an integer number (32708809074489).

Almost surely, 2^{65417618148977} is an apocalyptic number.

It is an amenable number.

65417618148977 is a deficient number, since it is larger than the sum of its proper divisors (1).

65417618148977 is an equidigital number, since it uses as much as digits as its factorization.

65417618148977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 568995840, while the sum is 74.

The spelling of 65417618148977 in words is "sixty-five trillion, four hundred seventeen billion, six hundred eighteen million, one hundred forty-eight thousand, nine hundred seventy-seven".