20538670588 has 12 divisors (see below), whose sum is σ = 36397644640. Its totient is φ = 10139343552.

The previous prime is 20538670583. The next prime is 20538670589. The reversal of 20538670588 is 88507683502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20538670583) 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 3 ways as a sum of consecutive naturals, for example, 32497581 + ... + 32498212.

Almost surely, 2^20538670588 is an apocalyptic number.

It is an amenable number.

20538670588 is a deficient number, since it is larger than the sum of its proper divisors (15858974052).

20538670588 is a wasteful number, since it uses less digits than its factorization.

20538670588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64995876 (or 64995874 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 20538670588 in words is "twenty billion, five hundred thirty-eight million, six hundred seventy thousand, five hundred eighty-eight".