3664614181 has 2 divisors, whose sum is σ = 3664614182. Its totient is φ = 3664614180.

The previous prime is 3664614179. The next prime is 3664614221. The reversal of 3664614181 is 1814164663.

It is an a-pointer prime, because the next prime (3664614221) can be obtained adding 3664614181 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2774128900 + 890485281 = 52670^2 + 29841^2 .

It is a cyclic number.

It is not a de Polignac number, because 3664614181 - 2¹ = 3664614179 is a prime.

It is a super-2 number, since 2×3664614181² = 26858794191172601522, which contains 22 as substring.

Together with 3664614179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3664612181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832307090 + 1832307091.

It is an arithmetic number, because the mean of its divisors is an integer number (1832307091).

Almost surely, 2^3664614181 is an apocalyptic number.

It is an amenable number.

3664614181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664614181 is an equidigital number, since it uses as much as digits as its factorization.

3664614181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 3664614181 is about 60536.0568669615. The cubic root of 3664614181 is about 1541.7338908085.

The spelling of 3664614181 in words is "three billion, six hundred sixty-four million, six hundred fourteen thousand, one hundred eighty-one".