326416663320 has 128 divisors (see below), whose sum is σ = 1114719459840. Its totient is φ = 75690813440.

The previous prime is 326416663253. The next prime is 326416663333. The reversal of 326416663320 is 23366614623.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5345409 + ... + 5406128.

It is an arithmetic number, because the mean of its divisors is an integer number (8708745780).

Almost surely, 2^326416663320 is an apocalyptic number.

326416663320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

326416663320 is an abundant number, since it is smaller than the sum of its proper divisors (788302796520).

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

326416663320 is a wasteful number, since it uses less digits than its factorization.

326416663320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751585 (or 10751581 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 42.

The spelling of 326416663320 in words is "three hundred twenty-six billion, four hundred sixteen million, six hundred sixty-three thousand, three hundred twenty".