396169616555 has 4 divisors (see below), whose sum is σ = 475403539872. Its totient is φ = 316935693240.

The previous prime is 396169616543. The next prime is 396169616611. The reversal of 396169616555 is 555616961693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 396169616555 - 2¹⁰ = 396169615531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39616961651 + ... + 39616961660.

It is an arithmetic number, because the mean of its divisors is an integer number (118850884968).

Almost surely, 2^396169616555 is an apocalyptic number.

396169616555 is a deficient number, since it is larger than the sum of its proper divisors (79233923317).

396169616555 is an equidigital number, since it uses as much as digits as its factorization.

396169616555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79233923316.

The product of its digits is 39366000, while the sum is 62.

The spelling of 396169616555 in words is "three hundred ninety-six billion, one hundred sixty-nine million, six hundred sixteen thousand, five hundred fifty-five".