305336621668 has 144 divisors (see below), whose sum is σ = 598829172480. Its totient is φ = 136109376000.

The previous prime is 305336621651. The next prime is 305336621669. The reversal of 305336621668 is 866126633503.

It is not an unprimeable number, because it can be changed into a prime (305336621669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 695527393 + ... + 695527831.

It is an arithmetic number, because the mean of its divisors is an integer number (4158535920).

Almost surely, 2^305336621668 is an apocalyptic number.

It is an amenable number.

305336621668 is a deficient number, since it is larger than the sum of its proper divisors (293492550812).

305336621668 is a wasteful number, since it uses less digits than its factorization.

305336621668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 305336621668 in words is "three hundred five billion, three hundred thirty-six million, six hundred twenty-one thousand, six hundred sixty-eight".