320040416836 has 24 divisors (see below), whose sum is σ = 667910436480. Its totient is φ = 131196692352.

The previous prime is 320040416833. The next prime is 320040416881. The reversal of 320040416836 is 638614040023.

It is a junction number, because it is equal to n+sod(n) for n = 320040416795 and 320040416804.

It is not an unprimeable number, because it can be changed into a prime (320040416833) 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, 248477941 + ... + 248479228.

It is an arithmetic number, because the mean of its divisors is an integer number (27829601520).

Almost surely, 2^320040416836 is an apocalyptic number.

It is an amenable number.

320040416836 is an abundant number, since it is smaller than the sum of its proper divisors (347870019644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320040416836 is a wasteful number, since it uses less digits than its factorization.

320040416836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496957203 (or 496957201 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 320040416836 its reverse (638614040023), we get a palindrome (958654456859).

The spelling of 320040416836 in words is "three hundred twenty billion, forty million, four hundred sixteen thousand, eight hundred thirty-six".