885216081 has 4 divisors (see below), whose sum is σ = 1180288112. Its totient is φ = 590144052.

The previous prime is 885216077. The next prime is 885216091. The reversal of 885216081 is 180612588.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 885216081 - 2² = 885216077 is a prime.

It is a super-2 number, since 2×885216081² = 1567215020121997122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (885216041) 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, 147536011 + ... + 147536016.

It is an arithmetic number, because the mean of its divisors is an integer number (295072028).

Almost surely, 2^885216081 is an apocalyptic number.

It is an amenable number.

885216081 is a deficient number, since it is larger than the sum of its proper divisors (295072031).

885216081 is a wasteful number, since it uses less digits than its factorization.

885216081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295072030.

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 885216081 is about 29752.5810813112. The cubic root of 885216081 is about 960.1736090102.

The spelling of 885216081 in words is "eight hundred eighty-five million, two hundred sixteen thousand, eighty-one".