20503005914 has 16 divisors (see below), whose sum is σ = 30798829152. Its totient is φ = 10236743088.

The previous prime is 20503005899. The next prime is 20503005931. The reversal of 20503005914 is 41950030502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6918197 + ... + 6921159.

It is an arithmetic number, because the mean of its divisors is an integer number (1924926822).

Almost surely, 2^20503005914 is an apocalyptic number.

20503005914 is a deficient number, since it is larger than the sum of its proper divisors (10295823238).

20503005914 is a wasteful number, since it uses less digits than its factorization.

20503005914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6781.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 20503005914 in words is "twenty billion, five hundred three million, five thousand, nine hundred fourteen".