8168363641 has 3 divisors (see below), whose sum is σ = 8168454021. Its totient is φ = 8168273262.

The previous prime is 8168363633. The next prime is 8168363653. The reversal of 8168363641 is 1463638618.

The square root of 8168363641 is 90379.

It is a perfect power (a square), and thus also a powerful number.

8168363641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 8168363641 - 2³ = 8168363633 is a prime.

It is a super-2 number, since 2×8168363641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8168363591 and 8168363600.

It is not an unprimeable number, because it can be changed into a prime (8168363141) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 45190 + ... + 135568.

It is an arithmetic number, because the mean of its divisors is an integer number (2722818007).

Almost surely, 2^8168363641 is an apocalyptic number.

8168363641 is the 90379-th square number.

8168363641 is the 45190-th centered octagonal number.

It is an amenable number.

8168363641 is a deficient number, since it is larger than the sum of its proper divisors (90380).

8168363641 is an frugal number, since it uses more digits than its factorization.

8168363641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180758 (or 90379 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The cubic root of 8168363641 is about 2013.9330135829.

The spelling of 8168363641 in words is "eight billion, one hundred sixty-eight million, three hundred sixty-three thousand, six hundred forty-one".