20512585958 has 16 divisors (see below), whose sum is σ = 31213797120. Its totient is φ = 10108972800.

The previous prime is 20512585957. The next prime is 20512585963. The reversal of 20512585958 is 85958521502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20512585957) by changing a digit.

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, 204683 + ... + 287958.

It is an arithmetic number, because the mean of its divisors is an integer number (1950862320).

Almost surely, 2^20512585958 is an apocalyptic number.

20512585958 is a deficient number, since it is larger than the sum of its proper divisors (10701211162).

20512585958 is a wasteful number, since it uses less digits than its factorization.

20512585958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492943.

The product of its (nonzero) digits is 1440000, while the sum is 50.

The spelling of 20512585958 in words is "twenty billion, five hundred twelve million, five hundred eighty-five thousand, nine hundred fifty-eight".