3668337664 has 22 divisors (see below), whose sum is σ = 7333095014. Its totient is φ = 1834168320.

The previous prime is 3668337649. The next prime is 3668337671. The reversal of 3668337664 is 4667338663.

It can be written as a sum of positive squares in only one way, i.e., 3619225600 + 49112064 = 60160^2 + 7008^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1790157 + ... + 1792204.

Almost surely, 2^3668337664 is an apocalyptic number.

It is an amenable number.

3668337664 is a deficient number, since it is larger than the sum of its proper divisors (3664757350).

3668337664 is an equidigital number, since it uses as much as digits as its factorization.

3668337664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582381 (or 3582363 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 52.

The square root of 3668337664 is about 60566.8033166684. The cubic root of 3668337664 is about 1542.2558808886.

Subtracting 3668337664 from its reverse (4667338663), we obtain a palindrome (999000999).

It can be divided in two parts, 36683 and 37664, that added together give a palindrome (74347).

The spelling of 3668337664 in words is "three billion, six hundred sixty-eight million, three hundred thirty-seven thousand, six hundred sixty-four".