20570000036 has 12 divisors (see below), whose sum is σ = 36001443660. Its totient is φ = 10283873280.

The previous prime is 20570000027. The next prime is 20570000089. The reversal of 20570000036 is 63000007502.

It can be written as a sum of positive squares in 2 ways, for example, as 16855828900 + 3714171136 = 129830^2 + 60944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20569999966 and 20570000020.

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 3 ways as a sum of consecutive naturals, for example, 239921 + ... + 314168.

It is an arithmetic number, because the mean of its divisors is an integer number (3000120305).

Almost surely, 2^20570000036 is an apocalyptic number.

It is an amenable number.

20570000036 is a deficient number, since it is larger than the sum of its proper divisors (15431443624).

20570000036 is a wasteful number, since it uses less digits than its factorization.

20570000036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563374 (or 563372 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

Adding to 20570000036 its reverse (63000007502), we get a palindrome (83570007538).

The spelling of 20570000036 in words is "twenty billion, five hundred seventy million, thirty-six", and thus it is an aban number.