816095805101 has 4 divisors (see below), whose sum is σ = 816110857692. Its totient is φ = 816080752512.

The previous prime is 816095805079. The next prime is 816095805157. The reversal of 816095805101 is 101508590618.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 638239612201 + 177856192900 = 798899^2 + 421730^2 .

It is a cyclic number.

It is not a de Polignac number, because 816095805101 - 2¹⁰ = 816095804077 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 (816095805191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7444676 + ... + 7553501.

It is an arithmetic number, because the mean of its divisors is an integer number (204027714423).

Almost surely, 2^816095805101 is an apocalyptic number.

It is an amenable number.

816095805101 is a deficient number, since it is larger than the sum of its proper divisors (15052591).

816095805101 is a wasteful number, since it uses less digits than its factorization.

816095805101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15052590.

The product of its (nonzero) digits is 86400, while the sum is 44.

The spelling of 816095805101 in words is "eight hundred sixteen billion, ninety-five million, eight hundred five thousand, one hundred one".