80216165 has 8 divisors (see below), whose sum is σ = 96798240. Its totient is φ = 63813712.

The previous prime is 80216161. The next prime is 80216173. The reversal of 80216165 is 56161208.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80216165 - 2² = 80216161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80216161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43919 + ... + 45708.

It is an arithmetic number, because the mean of its divisors is an integer number (12099780).

Almost surely, 2^80216165 is an apocalyptic number.

It is an amenable number.

80216165 is a deficient number, since it is larger than the sum of its proper divisors (16582075).

80216165 is a wasteful number, since it uses less digits than its factorization.

80216165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89811.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 80216165 is about 8956.3477489432. The cubic root of 80216165 is about 431.2746834573.

The spelling of 80216165 in words is "eighty million, two hundred sixteen thousand, one hundred sixty-five".