8168031641 has 8 divisors (see below), whose sum is σ = 10183520064. Its totient is φ = 6364699920.

The previous prime is 8168031637. The next prime is 8168031649. The reversal of 8168031641 is 1461308618.

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 8168031641 - 2² = 8168031637 is a prime.

It is a super-3 number, since 3×8168031641³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8168031595 and 8168031604.

It is not an unprimeable number, because it can be changed into a prime (8168031649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53039090 + ... + 53039243.

It is an arithmetic number, because the mean of its divisors is an integer number (1272940008).

Almost surely, 2^8168031641 is an apocalyptic number.

It is an amenable number.

8168031641 is a deficient number, since it is larger than the sum of its proper divisors (2015488423).

8168031641 is a wasteful number, since it uses less digits than its factorization.

8168031641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106078351.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 8168031641 is about 90377.1632714814. The cubic root of 8168031641 is about 2013.9057280355.

The spelling of 8168031641 in words is "eight billion, one hundred sixty-eight million, thirty-one thousand, six hundred forty-one".