6637640467366 has 16 divisors (see below), whose sum is σ = 9996425353728. Its totient is φ = 3305504005000.

The previous prime is 6637640467343. The next prime is 6637640467391.

6637640467366 is nontrivially palindromic in base 10.

It is a super-4 number, since 4×6637640467366⁴ (a number of 52 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6637640467298 and 6637640467307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170981 + ... + 3827071.

It is an arithmetic number, because the mean of its divisors is an integer number (624776584608).

Almost surely, 2^{6637640467366} is an apocalyptic number.

6637640467366 is a deficient number, since it is larger than the sum of its proper divisors (3358784886362).

6637640467366 is a wasteful number, since it uses less digits than its factorization.

6637640467366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661107.

The product of its (nonzero) digits is 329204736, while the sum is 64.

The spelling of 6637640467366 in words is "six trillion, six hundred thirty-seven billion, six hundred forty million, four hundred sixty-seven thousand, three hundred sixty-six".