65614620077 has 2 divisors, whose sum is σ = 65614620078. Its totient is φ = 65614620076.

The previous prime is 65614620059. The next prime is 65614620089. The reversal of 65614620077 is 77002641656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64732589476 + 882030601 = 254426^2 + 29699^2 .

It is a cyclic number.

It is not a de Polignac number, because 65614620077 - 2⁶ = 65614620013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65614625077) 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, 32807310038 + 32807310039.

It is an arithmetic number, because the mean of its divisors is an integer number (32807310039).

Almost surely, 2^65614620077 is an apocalyptic number.

It is an amenable number.

65614620077 is a deficient number, since it is larger than the sum of its proper divisors (1).

65614620077 is an equidigital number, since it uses as much as digits as its factorization.

65614620077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 65614620077 in words is "sixty-five billion, six hundred fourteen million, six hundred twenty thousand, seventy-seven".