400065323163 has 8 divisors (see below), whose sum is σ = 581913197376. Its totient is φ = 242463832200.

The previous prime is 400065323111. The next prime is 400065323167. The reversal of 400065323163 is 361323560004.

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

It is not a de Polignac number, because 400065323163 - 2¹⁷ = 400065192091 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 12123191611 = 400065323163 / (4 + 0 + 0 + 0 + 6 + 5 + 3 + 2 + 3 + 1 + 6 + 3).

It is not an unprimeable number, because it can be changed into a prime (400065323167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6061595773 + ... + 6061595838.

It is an arithmetic number, because the mean of its divisors is an integer number (72739149672).

Almost surely, 2^400065323163 is an apocalyptic number.

400065323163 is a deficient number, since it is larger than the sum of its proper divisors (181847874213).

400065323163 is a wasteful number, since it uses less digits than its factorization.

400065323163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123191625.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 400065323163 its reverse (361323560004), we get a palindrome (761388883167).

The spelling of 400065323163 in words is "four hundred billion, sixty-five million, three hundred twenty-three thousand, one hundred sixty-three".