20173432652 has 24 divisors (see below), whose sum is σ = 36594862080. Its totient is φ = 9720481680.

The previous prime is 20173432627. The next prime is 20173432691. The reversal of 20173432652 is 25623437102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310718 + ... + 369989.

It is an arithmetic number, because the mean of its divisors is an integer number (1524785920).

Almost surely, 2^20173432652 is an apocalyptic number.

It is an amenable number.

20173432652 is a deficient number, since it is larger than the sum of its proper divisors (16421429428).

20173432652 is a wasteful number, since it uses less digits than its factorization.

20173432652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680981 (or 680979 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

Adding to 20173432652 its reverse (25623437102), we get a palindrome (45796869754).

The spelling of 20173432652 in words is "twenty billion, one hundred seventy-three million, four hundred thirty-two thousand, six hundred fifty-two".