863516161 has 8 divisors (see below), whose sum is σ = 913677920. Its totient is φ = 813825792.

The previous prime is 863516149. The next prime is 863516221. The reversal of 863516161 is 161615368.

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

It is a cyclic number.

It is not a de Polignac number, because 863516161 - 2¹³ = 863507969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 863516161.

It is not an unprimeable number, because it can be changed into a prime (863516111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114075 + ... + 121408.

It is an arithmetic number, because the mean of its divisors is an integer number (114209740).

Almost surely, 2^863516161 is an apocalyptic number.

It is an amenable number.

863516161 is a deficient number, since it is larger than the sum of its proper divisors (50161759).

863516161 is a wasteful number, since it uses less digits than its factorization.

863516161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235695.

The product of its digits is 25920, while the sum is 37.

The square root of 863516161 is about 29385.6454923148. The cubic root of 863516161 is about 952.2628094331.

The spelling of 863516161 in words is "eight hundred sixty-three million, five hundred sixteen thousand, one hundred sixty-one".