20544542016 has 56 divisors (see below), whose sum is σ = 54419443104. Its totient is φ = 6840368640.

The previous prime is 20544542003. The next prime is 20544542027. The reversal of 20544542016 is 61024544502.

It is a super-3 number, since 3×20544542016³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108946 + ... + 230126.

Almost surely, 2^20544542016 is an apocalyptic number.

It is an amenable number.

20544542016 is an abundant number, since it is smaller than the sum of its proper divisors (33874901088).

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

20544542016 is a wasteful number, since it uses less digits than its factorization.

20544542016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122079 (or 122069 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 20544542016 in words is "twenty billion, five hundred forty-four million, five hundred forty-two thousand, sixteen".