3644161163 has 4 divisors (see below), whose sum is σ = 3644675400. Its totient is φ = 3643646928.

The previous prime is 3644161151. The next prime is 3644161201. The reversal of 3644161163 is 3611614463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3611614463 = 433 ⋅8340911.

It is a cyclic number.

It is not a de Polignac number, because 3644161163 - 2¹⁰ = 3644160139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3644161133) 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, 246338 + ... + 260711.

It is an arithmetic number, because the mean of its divisors is an integer number (911168850).

Almost surely, 2^3644161163 is an apocalyptic number.

3644161163 is a deficient number, since it is larger than the sum of its proper divisors (514237).

3644161163 is an equidigital number, since it uses as much as digits as its factorization.

3644161163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514236.

The product of its digits is 31104, while the sum is 35.

The square root of 3644161163 is about 60366.8879684882. The cubic root of 3644161163 is about 1538.8602860715.

The spelling of 3644161163 in words is "three billion, six hundred forty-four million, one hundred sixty-one thousand, one hundred sixty-three".