320661614336 has 72 divisors (see below), whose sum is σ = 743501517024. Its totient is φ = 135173468160.

The previous prime is 320661614149. The next prime is 320661614341. The reversal of 320661614336 is 633416166023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320661614293 and 320661614302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357415 + ... + 1576038.

Almost surely, 2^320661614336 is an apocalyptic number.

It is an amenable number.

320661614336 is an abundant number, since it is smaller than the sum of its proper divisors (422839902688).

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

320661614336 is an equidigital number, since it uses as much as digits as its factorization.

320661614336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933537 (or 2933523 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 320661614336 in words is "three hundred twenty billion, six hundred sixty-one million, six hundred fourteen thousand, three hundred thirty-six".