80242206707657 has 4 divisors (see below), whose sum is σ = 80242242360336. Its totient is φ = 80242171054980.

The previous prime is 80242206707633. The next prime is 80242206707669. The reversal of 80242206707657 is 75670760224208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80242206707657 - 2²⁰ = 80242205659081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80242206907657) 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, 14205143 + ... + 19033404.

It is an arithmetic number, because the mean of its divisors is an integer number (20060560590084).

Almost surely, 2^{80242206707657} is an apocalyptic number.

It is an amenable number.

80242206707657 is a deficient number, since it is larger than the sum of its proper divisors (35652679).

80242206707657 is a wasteful number, since it uses less digits than its factorization.

80242206707657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35652678.

The product of its (nonzero) digits is 15805440, while the sum is 56.

The spelling of 80242206707657 in words is "eighty trillion, two hundred forty-two billion, two hundred six million, seven hundred seven thousand, six hundred fifty-seven".