80170665573 has 4 divisors (see below), whose sum is σ = 106894220768. Its totient is φ = 53447110380.

The previous prime is 80170665557. The next prime is 80170665577. The reversal of 80170665573 is 37556607108.

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 not a de Polignac number, because 80170665573 - 2⁴ = 80170665557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80170665577) 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 in 3 ways as a sum of consecutive naturals, for example, 13361777593 + ... + 13361777598.

It is an arithmetic number, because the mean of its divisors is an integer number (26723555192).

Almost surely, 2^80170665573 is an apocalyptic number.

It is an amenable number.

80170665573 is a deficient number, since it is larger than the sum of its proper divisors (26723555195).

80170665573 is a wasteful number, since it uses less digits than its factorization.

80170665573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26723555194.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 80170665573 in words is "eighty billion, one hundred seventy million, six hundred sixty-five thousand, five hundred seventy-three".