239305020021648 has 120 divisors (see below), whose sum is σ = 765934094485248. Its totient is φ = 68324814061056.

The previous prime is 239305020021643. The next prime is 239305020021671. The reversal of 239305020021648 is 846120020503932.

239305020021648 is a `hidden beast` number, since 2 + 3 + 93 + 0 + 502 + 0 + 0 + 2 + 16 + 48 = 666.

It is a super-2 number, since 2×239305020021648² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (239305020021643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81982965 + ... + 84851732.

Almost surely, 2^{239305020021648} is an apocalyptic number.

239305020021648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

239305020021648 is an abundant number, since it is smaller than the sum of its proper divisors (526629074463600).

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

239305020021648 is a wasteful number, since it uses less digits than its factorization.

239305020021648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166836141 (or 166836132 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 239305020021648 in words is "two hundred thirty-nine trillion, three hundred five billion, twenty million, twenty-one thousand, six hundred forty-eight".