3667564081 has 2 divisors, whose sum is σ = 3667564082. Its totient is φ = 3667564080.

The previous prime is 3667564079. The next prime is 3667564097. The reversal of 3667564081 is 1804657663.

3667564081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2831197681 + 836366400 = 53209^2 + 28920^2 .

It is a cyclic number.

It is not a de Polignac number, because 3667564081 - 2¹ = 3667564079 is a prime.

It is a super-2 number, since 2×3667564081² = 26902052576482749122, which contains 22 as substring.

Together with 3667564079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3667564181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833782040 + 1833782041.

It is an arithmetic number, because the mean of its divisors is an integer number (1833782041).

Almost surely, 2^3667564081 is an apocalyptic number.

It is an amenable number.

3667564081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667564081 is an equidigital number, since it uses as much as digits as its factorization.

3667564081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 3667564081 is about 60560.4167835724. The cubic root of 3667564081 is about 1542.1474624064.

The spelling of 3667564081 in words is "three billion, six hundred sixty-seven million, five hundred sixty-four thousand, eighty-one".