20003600536 has 32 divisors (see below), whose sum is σ = 38479064400. Its totient is φ = 9743247360.

The previous prime is 20003600531. The next prime is 20003600621. The reversal of 20003600536 is 63500630002.

It is a self number, because there is not a number n which added to its sum of digits gives 20003600536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003600531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175435 + ... + 266053.

Almost surely, 2^20003600536 is an apocalyptic number.

It is an amenable number.

20003600536 is a deficient number, since it is larger than the sum of its proper divisors (18475463864).

20003600536 is a wasteful number, since it uses less digits than its factorization.

20003600536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91339 (or 91335 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The spelling of 20003600536 in words is "twenty billion, three million, six hundred thousand, five hundred thirty-six".