20516083548 has 48 divisors (see below), whose sum is σ = 51643176480. Its totient is φ = 6314973184.

The previous prime is 20516083547. The next prime is 20516083573. The reversal of 20516083548 is 84538061502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20516083541) 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 15 ways as a sum of consecutive naturals, for example, 937953 + ... + 959576.

It is an arithmetic number, because the mean of its divisors is an integer number (1075899510).

Almost surely, 2^20516083548 is an apocalyptic number.

It is an amenable number.

20516083548 is an abundant number, since it is smaller than the sum of its proper divisors (31127092932).

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

20516083548 is a wasteful number, since it uses less digits than its factorization.

20516083548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897606 (or 1897604 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 20516083548 in words is "twenty billion, five hundred sixteen million, eighty-three thousand, five hundred forty-eight".