304645021616 has 60 divisors (see below), whose sum is σ = 639801938448. Its totient is φ = 140461132032.

The previous prime is 304645021589. The next prime is 304645021631. The reversal of 304645021616 is 616120546403.

It is a self number, because there is not a number n which added to its sum of digits gives 304645021616.

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 11 ways as a sum of consecutive naturals, for example, 2600726 + ... + 2715338.

Almost surely, 2^304645021616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304645021616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319900969224).

304645021616 is an abundant number, since it is smaller than the sum of its proper divisors (335156916832).

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

304645021616 is a wasteful number, since it uses less digits than its factorization.

304645021616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115630 (or 115611 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 304645021616 in words is "three hundred four billion, six hundred forty-five million, twenty-one thousand, six hundred sixteen".