80185642664497 has 16 divisors (see below), whose sum is σ = 80571673405440. Its totient is φ = 79800050206800.

The previous prime is 80185642664489. The next prime is 80185642664507. The reversal of 80185642664497 is 79446624658108.

It is a cyclic number.

It is not a de Polignac number, because 80185642664497 - 2³ = 80185642664489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80185642664437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2723404858 + ... + 2723434300.

It is an arithmetic number, because the mean of its divisors is an integer number (5035729587840).

Almost surely, 2^{80185642664497} is an apocalyptic number.

It is an amenable number.

80185642664497 is a deficient number, since it is larger than the sum of its proper divisors (386030740943).

80185642664497 is a wasteful number, since it uses less digits than its factorization.

80185642664497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36444.

The product of its (nonzero) digits is 557383680, while the sum is 70.

The spelling of 80185642664497 in words is "eighty trillion, one hundred eighty-five billion, six hundred forty-two million, six hundred sixty-four thousand, four hundred ninety-seven".