800111665 has 8 divisors (see below), whose sum is σ = 960510528. Its totient is φ = 639838320.

The previous prime is 800111659. The next prime is 800111687. The reversal of 800111665 is 566111008.

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

It is not a de Polignac number, because 800111665 - 2¹⁷ = 799980593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16731 + ... + 43360.

It is an arithmetic number, because the mean of its divisors is an integer number (120063816).

Almost surely, 2^800111665 is an apocalyptic number.

It is an amenable number.

800111665 is a deficient number, since it is larger than the sum of its proper divisors (160398863).

800111665 is a wasteful number, since it uses less digits than its factorization.

800111665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62759.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 800111665 is about 28286.2451555522. The cubic root of 800111665 is about 928.3609566312.

The spelling of 800111665 in words is "eight hundred million, one hundred eleven thousand, six hundred sixty-five".