396669682208 has 18 divisors (see below), whose sum is σ = 780950451141. Its totient is φ = 198333059712.

The previous prime is 396669682207. The next prime is 396669682237. The reversal of 396669682208 is 802286966693.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 392141468944 + 4528213264 = 626212^2 + 67292^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=445348.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396669682207) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3507116 + ... + 3618452.

Almost surely, 2^396669682208 is an apocalyptic number.

It is an amenable number.

396669682208 is a deficient number, since it is larger than the sum of its proper divisors (384280768933).

396669682208 is an frugal number, since it uses more digits than its factorization.

396669682208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222684 (or 111339 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 65.

The spelling of 396669682208 in words is "three hundred ninety-six billion, six hundred sixty-nine million, six hundred eighty-two thousand, two hundred eight".