3664733161 has 4 divisors (see below), whose sum is σ = 3791103300. Its totient is φ = 3538363024.

The previous prime is 3664733147. The next prime is 3664733203. The reversal of 3664733161 is 1613374663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1613374663 = 43 ⋅37520341.

It can be written as a sum of positive squares in 2 ways, for example, as 1718599936 + 1946133225 = 41456^2 + 44115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3664733161 - 2⁹ = 3664732649 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3664733101) 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, 63185026 + ... + 63185083.

It is an arithmetic number, because the mean of its divisors is an integer number (947775825).

Almost surely, 2^3664733161 is an apocalyptic number.

It is an amenable number.

3664733161 is a deficient number, since it is larger than the sum of its proper divisors (126370139).

3664733161 is a wasteful number, since it uses less digits than its factorization.

3664733161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126370138.

The product of its digits is 163296, while the sum is 40.

The square root of 3664733161 is about 60537.0395790874. The cubic root of 3664733161 is about 1541.7505759222.

The spelling of 3664733161 in words is "three billion, six hundred sixty-four million, seven hundred thirty-three thousand, one hundred sixty-one".