65760764077 has 2 divisors, whose sum is σ = 65760764078. Its totient is φ = 65760764076.

The previous prime is 65760764033. The next prime is 65760764107. The reversal of 65760764077 is 77046706756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40205864196 + 25554899881 = 200514^2 + 159859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65760764077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65760704077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32880382038 + 32880382039.

It is an arithmetic number, because the mean of its divisors is an integer number (32880382039).

Almost surely, 2^65760764077 is an apocalyptic number.

It is an amenable number.

65760764077 is a deficient number, since it is larger than the sum of its proper divisors (1).

65760764077 is an equidigital number, since it uses as much as digits as its factorization.

65760764077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10372320, while the sum is 55.

The spelling of 65760764077 in words is "sixty-five billion, seven hundred sixty million, seven hundred sixty-four thousand, seventy-seven".