80222865 has 16 divisors (see below), whose sum is σ = 129033216. Its totient is φ = 42560000.

The previous prime is 80222861. The next prime is 80222887. The reversal of 80222865 is 56822208.

It is not a de Polignac number, because 80222865 - 2² = 80222861 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80222861) 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, 11136 + ... + 16865.

It is an arithmetic number, because the mean of its divisors is an integer number (8064576).

Almost surely, 2^80222865 is an apocalyptic number.

It is an amenable number.

80222865 is a deficient number, since it is larger than the sum of its proper divisors (48810351).

80222865 is a wasteful number, since it uses less digits than its factorization.

80222865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28200.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 80222865 is about 8956.7217775255. The cubic root of 80222865 is about 431.2866904301.

The spelling of 80222865 in words is "eighty million, two hundred twenty-two thousand, eight hundred sixty-five".