20604405352 has 32 divisors (see below), whose sum is σ = 39945467520. Its totient is φ = 9956978560.

The previous prime is 20604405343. The next prime is 20604405359. The reversal of 20604405352 is 25350440602.

It is not an unprimeable number, because it can be changed into a prime (20604405359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258448 + ... + 328639.

It is an arithmetic number, because the mean of its divisors is an integer number (1248295860).

Almost surely, 2^20604405352 is an apocalyptic number.

It is an amenable number.

20604405352 is a deficient number, since it is larger than the sum of its proper divisors (19341062168).

20604405352 is a wasteful number, since it uses less digits than its factorization.

20604405352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587241 (or 587237 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20604405352 its reverse (25350440602), we get a palindrome (45954845954).

The spelling of 20604405352 in words is "twenty billion, six hundred four million, four hundred five thousand, three hundred fifty-two".