20567127648 has 48 divisors (see below), whose sum is σ = 54083405376. Its totient is φ = 6843684480.

The previous prime is 20567127631. The next prime is 20567127673. The reversal of 20567127648 is 84672176502.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 20567127597 and 20567127606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132786 + ... + 242417.

It is an arithmetic number, because the mean of its divisors is an integer number (1126737612).

Almost surely, 2^20567127648 is an apocalyptic number.

It is an amenable number.

20567127648 is an abundant number, since it is smaller than the sum of its proper divisors (33516277728).

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

20567127648 is a wasteful number, since it uses less digits than its factorization.

20567127648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375787 (or 375779 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 20567127648 in words is "twenty billion, five hundred sixty-seven million, one hundred twenty-seven thousand, six hundred forty-eight".