80206208377 has 4 divisors (see below), whose sum is σ = 80214642036. Its totient is φ = 80197774720.

The previous prime is 80206208323. The next prime is 80206208387. The reversal of 80206208377 is 77380260208.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53814256441 + 26391951936 = 231979^2 + 162456^2 .

It is a cyclic number.

It is not a de Polignac number, because 80206208377 - 2⁷ = 80206208249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80206208387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202548 + ... + 4221589.

It is an arithmetic number, because the mean of its divisors is an integer number (20053660509).

Almost surely, 2^80206208377 is an apocalyptic number.

It is an amenable number.

80206208377 is a deficient number, since it is larger than the sum of its proper divisors (8433659).

80206208377 is an equidigital number, since it uses as much as digits as its factorization.

80206208377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8433658.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 80206208377 in words is "eighty billion, two hundred six million, two hundred eight thousand, three hundred seventy-seven".