20500116034534 has 16 divisors (see below), whose sum is σ = 32559766153488. Its totient is φ = 9646888736512.

The previous prime is 20500116034511. The next prime is 20500116034537. The reversal of 20500116034534 is 43543061100502.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 20500116034534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20500116034537) 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, 5535799 + ... + 8464354.

It is an arithmetic number, because the mean of its divisors is an integer number (2034985384593).

Almost surely, 2^{20500116034534} is an apocalyptic number.

20500116034534 is a deficient number, since it is larger than the sum of its proper divisors (12059650118954).

20500116034534 is a wasteful number, since it uses less digits than its factorization.

20500116034534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14043239.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 20500116034534 in words is "twenty trillion, five hundred billion, one hundred sixteen million, thirty-four thousand, five hundred thirty-four".