80055755077 has 2 divisors, whose sum is σ = 80055755078. Its totient is φ = 80055755076.

The previous prime is 80055755051. The next prime is 80055755081. The reversal of 80055755077 is 77055755008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73489245921 + 6566509156 = 271089^2 + 81034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80055755077 is a prime.

It is a super-2 number, since 2×80055755077² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80055755077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80055755677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40027877538 + 40027877539.

It is an arithmetic number, because the mean of its divisors is an integer number (40027877539).

Almost surely, 2^80055755077 is an apocalyptic number.

It is an amenable number.

80055755077 is a deficient number, since it is larger than the sum of its proper divisors (1).

80055755077 is an equidigital number, since it uses as much as digits as its factorization.

80055755077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1715000, while the sum is 49.

The spelling of 80055755077 in words is "eighty billion, fifty-five million, seven hundred fifty-five thousand, seventy-seven".