3667000033681 has 2 divisors, whose sum is σ = 3667000033682. Its totient is φ = 3667000033680.

The previous prime is 3667000033673. The next prime is 3667000033691. The reversal of 3667000033681 is 1863300007663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3558901115025 + 108098918656 = 1886505^2 + 328784^2 .

It is an emirp because it is prime and its reverse (1863300007663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3667000033681 - 2³ = 3667000033673 is a prime.

It is a super-2 number, since 2×3667000033681² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3667000033601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833500016840 + 1833500016841.

It is an arithmetic number, because the mean of its divisors is an integer number (1833500016841).

Almost surely, 2^{3667000033681} is an apocalyptic number.

It is an amenable number.

3667000033681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667000033681 is an equidigital number, since it uses as much as digits as its factorization.

3667000033681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 3667000033681 in words is "three trillion, six hundred sixty-seven billion, thirty-three thousand, six hundred eighty-one".