3664735121 has 2 divisors, whose sum is σ = 3664735122. Its totient is φ = 3664735120.

The previous prime is 3664735099. The next prime is 3664735163. The reversal of 3664735121 is 1215374663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3315456400 + 349278721 = 57580^2 + 18689^2 .

It is a cyclic number.

It is not a de Polignac number, because 3664735121 - 2¹⁰ = 3664734097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3664735171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832367560 + 1832367561.

It is an arithmetic number, because the mean of its divisors is an integer number (1832367561).

Almost surely, 2^3664735121 is an apocalyptic number.

It is an amenable number.

3664735121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664735121 is an equidigital number, since it uses as much as digits as its factorization.

3664735121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 3664735121 is about 60537.0557675214. The cubic root of 3664735121 is about 1541.7508507790.

The spelling of 3664735121 in words is "three billion, six hundred sixty-four million, seven hundred thirty-five thousand, one hundred twenty-one".