80165855 has 16 divisors (see below), whose sum is σ = 119937024. Its totient is φ = 49973280.

The previous prime is 80165851. The next prime is 80165861. The reversal of 80165855 is 55856108.

It is not a de Polignac number, because 80165855 - 2² = 80165851 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 (80165851) 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, 103727 + ... + 104496.

It is an arithmetic number, because the mean of its divisors is an integer number (7496064).

Almost surely, 2^80165855 is an apocalyptic number.

80165855 is a deficient number, since it is larger than the sum of its proper divisors (39771169).

80165855 is a wasteful number, since it uses less digits than its factorization.

80165855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208246.

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 80165855 is about 8953.5386859051. The cubic root of 80165855 is about 431.1845022701.

The spelling of 80165855 in words is "eighty million, one hundred sixty-five thousand, eight hundred fifty-five".