20315305532153 has 8 divisors (see below), whose sum is σ = 20426048944128. Its totient is φ = 20204862646144.

The previous prime is 20315305532063. The next prime is 20315305532189. The reversal of 20315305532153 is 35123550351302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20315305532153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20315305532953) 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 7 ways as a sum of consecutive naturals, for example, 74995925 + ... + 75266322.

It is an arithmetic number, because the mean of its divisors is an integer number (2553256118016).

Almost surely, 2^{20315305532153} is an apocalyptic number.

It is an amenable number.

20315305532153 is a deficient number, since it is larger than the sum of its proper divisors (110743411975).

20315305532153 is a wasteful number, since it uses less digits than its factorization.

20315305532153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150262983.

The product of its (nonzero) digits is 202500, while the sum is 38.

Adding to 20315305532153 its reverse (35123550351302), we get a palindrome (55438855883455).

The spelling of 20315305532153 in words is "twenty trillion, three hundred fifteen billion, three hundred five million, five hundred thirty-two thousand, one hundred fifty-three".