408392166623 has 8 divisors (see below), whose sum is σ = 466764042240. Its totient is φ = 350027825400.

The previous prime is 408392166619. The next prime is 408392166631. The reversal of 408392166623 is 326661293804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408392166623 - 2² = 408392166619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408392166223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766963 + ... + 1984676.

It is an arithmetic number, because the mean of its divisors is an integer number (58345505280).

Almost surely, 2^408392166623 is an apocalyptic number.

408392166623 is a deficient number, since it is larger than the sum of its proper divisors (58371875617).

408392166623 is a wasteful number, since it uses less digits than its factorization.

408392166623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767197.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 408392166623 in words is "four hundred eight billion, three hundred ninety-two million, one hundred sixty-six thousand, six hundred twenty-three".