401663330343 has 48 divisors (see below), whose sum is σ = 657466935840. Its totient is φ = 234062438400.

The previous prime is 401663330329. The next prime is 401663330351. The reversal of 401663330343 is 343033366104.

401663330343 is a `hidden beast` number, since 4 + 0 + 16 + 633 + 3 + 0 + 3 + 4 + 3 = 666.

It is not a de Polignac number, because 401663330343 - 2¹² = 401663326247 is a prime.

It is a super-2 number, since 2×401663330343² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401663330298 and 401663330307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401663330323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 401655 + ... + 982167.

It is an arithmetic number, because the mean of its divisors is an integer number (13697227830).

Almost surely, 2^401663330343 is an apocalyptic number.

401663330343 is a deficient number, since it is larger than the sum of its proper divisors (255803605497).

401663330343 is a wasteful number, since it uses less digits than its factorization.

401663330343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580800 (or 580797 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 36.

Adding to 401663330343 its reverse (343033366104), we get a palindrome (744696696447).

The spelling of 401663330343 in words is "four hundred one billion, six hundred sixty-three million, three hundred thirty thousand, three hundred forty-three".