20432203553215 has 8 divisors (see below), whose sum is σ = 24711704455680. Its totient is φ = 16217056048032.

The previous prime is 20432203553189. The next prime is 20432203553219. The reversal of 20432203553215 is 51235530223402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20432203553215 - 2¹¹ = 20432203551167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432203553219) 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, 16088348620 + ... + 16088349889.

It is an arithmetic number, because the mean of its divisors is an integer number (3088963056960).

Almost surely, 2^{20432203553215} is an apocalyptic number.

20432203553215 is a deficient number, since it is larger than the sum of its proper divisors (4279500902465).

20432203553215 is a wasteful number, since it uses less digits than its factorization.

20432203553215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32176698641.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 20432203553215 its reverse (51235530223402), we get a palindrome (71667733776617).

The spelling of 20432203553215 in words is "twenty trillion, four hundred thirty-two billion, two hundred three million, five hundred fifty-three thousand, two hundred fifteen".