16506054543 has 16 divisors (see below), whose sum is σ = 24278572800. Its totient is φ = 9891266880.

The previous prime is 16506054533. The next prime is 16506054553. The reversal of 16506054543 is 34545060561.

It is an interprime number because it is at equal distance from previous prime (16506054533) and next prime (16506054553).

It is not a de Polignac number, because 16506054543 - 2⁶ = 16506054479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506054533) 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 15 ways as a sum of consecutive naturals, for example, 2807083 + ... + 2812956.

It is an arithmetic number, because the mean of its divisors is an integer number (1517410800).

Almost surely, 2^16506054543 is an apocalyptic number.

16506054543 is a deficient number, since it is larger than the sum of its proper divisors (7772518257).

16506054543 is a wasteful number, since it uses less digits than its factorization.

16506054543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620142.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 16506054543 in words is "sixteen billion, five hundred six million, fifty-four thousand, five hundred forty-three".