20188835472530 has 32 divisors (see below), whose sum is σ = 37044086400000. Its totient is φ = 7919201639232.

The previous prime is 20188835472529. The next prime is 20188835472563. The reversal of 20188835472530 is 3527453888102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8468330 + ... + 10587269.

It is an arithmetic number, because the mean of its divisors is an integer number (1157627700000).

Almost surely, 2^{20188835472530} is an apocalyptic number.

20188835472530 is a deficient number, since it is larger than the sum of its proper divisors (16855250927470).

20188835472530 is a wasteful number, since it uses less digits than its factorization.

20188835472530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19057658.

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 20188835472530 in words is "twenty trillion, one hundred eighty-eight billion, eight hundred thirty-five million, four hundred seventy-two thousand, five hundred thirty".