720169412077 has 2 divisors, whose sum is σ = 720169412078. Its totient is φ = 720169412076.

The previous prime is 720169412059. The next prime is 720169412099. The reversal of 720169412077 is 770214961027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697109774761 + 23059637316 = 834931^2 + 151854^2 .

It is a cyclic number.

It is not a de Polignac number, because 720169412077 - 2¹¹ = 720169410029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720169413077) 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, 360084706038 + 360084706039.

It is an arithmetic number, because the mean of its divisors is an integer number (360084706039).

Almost surely, 2^720169412077 is an apocalyptic number.

It is an amenable number.

720169412077 is a deficient number, since it is larger than the sum of its proper divisors (1).

720169412077 is an equidigital number, since it uses as much as digits as its factorization.

720169412077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 720169412077 in words is "seven hundred twenty billion, one hundred sixty-nine million, four hundred twelve thousand, seventy-seven".