20534543151 has 48 divisors (see below), whose sum is σ = 30664916064. Its totient is φ = 12178833408.

The previous prime is 20534543011. The next prime is 20534543153. The reversal of 20534543151 is 15134543502.

It is not a de Polignac number, because 20534543151 - 2¹⁴ = 20534526767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534543153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10622181 + ... + 10624113.

It is an arithmetic number, because the mean of its divisors is an integer number (638852418).

Almost surely, 2^20534543151 is an apocalyptic number.

20534543151 is a deficient number, since it is larger than the sum of its proper divisors (10130372913).

20534543151 is a wasteful number, since it uses less digits than its factorization.

20534543151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568 (or 2549 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 20534543151 in words is "twenty billion, five hundred thirty-four million, five hundred forty-three thousand, one hundred fifty-one".