20542032654534 has 20 divisors (see below), whose sum is σ = 46029369467004. Its totient is φ = 6847344218124.

The previous prime is 20542032654529. The next prime is 20542032654547. The reversal of 20542032654534 is 43545623024502.

20542032654534 is a `hidden beast` number, since 2 + 0 + 5 + 4 + 20 + 32 + 65 + 4 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20542032654534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 63401335192 + ... + 63401335515.

Almost surely, 2^{20542032654534} is an apocalyptic number.

20542032654534 is an abundant number, since it is smaller than the sum of its proper divisors (25487336812470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20542032654534 is a wasteful number, since it uses less digits than its factorization.

20542032654534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126802670721 (or 126802670712 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

The spelling of 20542032654534 in words is "twenty trillion, five hundred forty-two billion, thirty-two million, six hundred fifty-four thousand, five hundred thirty-four".