3968144161 has 8 divisors (see below), whose sum is σ = 4150289664. Its totient is φ = 3786800160.

The previous prime is 3968144101. The next prime is 3968144171. The reversal of 3968144161 is 1614418693.

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 3968144161 - 2²¹ = 3966047009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3968144101) 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, 190236 + ... + 210061.

It is an arithmetic number, because the mean of its divisors is an integer number (518786208).

Almost surely, 2^3968144161 is an apocalyptic number.

It is an amenable number.

3968144161 is a deficient number, since it is larger than the sum of its proper divisors (182145503).

3968144161 is a wasteful number, since it uses less digits than its factorization.

3968144161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400751.

The product of its digits is 124416, while the sum is 43.

The square root of 3968144161 is about 62993.2072607833. The cubic root of 3968144161 is about 1583.1758161404.

The spelling of 3968144161 in words is "three billion, nine hundred sixty-eight million, one hundred forty-four thousand, one hundred sixty-one".