3663995161 has 4 divisors (see below), whose sum is σ = 3673562112. Its totient is φ = 3654428212.

The previous prime is 3663995147. The next prime is 3663995171. The reversal of 3663995161 is 1615993663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1615993663 = 2579 ⋅626597.

It is a cyclic number.

It is not a de Polignac number, because 3663995161 - 2¹³ = 3663986969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3663995141) 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 3 ways as a sum of consecutive naturals, for example, 4782901 + ... + 4783666.

It is an arithmetic number, because the mean of its divisors is an integer number (918390528).

Almost surely, 2^3663995161 is an apocalyptic number.

It is an amenable number.

3663995161 is a deficient number, since it is larger than the sum of its proper divisors (9566951).

3663995161 is an equidigital number, since it uses as much as digits as its factorization.

3663995161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566950.

The product of its digits is 787320, while the sum is 49.

The square root of 3663995161 is about 60530.9438304079. The cubic root of 3663995161 is about 1541.6470769533.

The spelling of 3663995161 in words is "three billion, six hundred sixty-three million, nine hundred ninety-five thousand, one hundred sixty-one".