80445365 has 32 divisors (see below), whose sum is σ = 129620736. Its totient is φ = 46287360.

The previous prime is 80445349. The next prime is 80445371. The reversal of 80445365 is 56354408.

It is not a de Polignac number, because 80445365 - 2⁴ = 80445349 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3032 + ... + 13041.

It is an arithmetic number, because the mean of its divisors is an integer number (4050648).

Almost surely, 2^80445365 is an apocalyptic number.

It is an amenable number.

80445365 is a deficient number, since it is larger than the sum of its proper divisors (49175371).

80445365 is a wasteful number, since it uses less digits than its factorization.

80445365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16109.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 80445365 is about 8969.1340161690. The cubic root of 80445365 is about 431.6850502913.

The spelling of 80445365 in words is "eighty million, four hundred forty-five thousand, three hundred sixty-five".