801215565 has 16 divisors (see below), whose sum is σ = 1286681856. Its totient is φ = 425736000.

The previous prime is 801215549. The next prime is 801215573. The reversal of 801215565 is 565512108.

801215565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 801215565 - 2⁴ = 801215549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94486 + ... + 102615.

It is an arithmetic number, because the mean of its divisors is an integer number (80417616).

Almost surely, 2^801215565 is an apocalyptic number.

It is an amenable number.

801215565 is a deficient number, since it is larger than the sum of its proper divisors (485466291).

801215565 is a wasteful number, since it uses less digits than its factorization.

801215565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197380.

The product of its (nonzero) digits is 12000, while the sum is 33.

The square root of 801215565 is about 28305.7514473649. The cubic root of 801215565 is about 928.7877081952.

The spelling of 801215565 in words is "eight hundred one million, two hundred fifteen thousand, five hundred sixty-five".