203512006845 has 64 divisors (see below), whose sum is σ = 435247104000. Its totient is φ = 88137523008.

The previous prime is 203512006811. The next prime is 203512006879. The reversal of 203512006845 is 548600215302.

203512006845 is a `hidden beast` number, since 2 + 0 + 351 + 200 + 68 + 45 = 666.

203512006845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (203512006811) and next prime (203512006879).

It is not a de Polignac number, because 203512006845 - 2⁹ = 203512006333 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5649325 + ... + 5685234.

It is an arithmetic number, because the mean of its divisors is an integer number (6800736000).

Almost surely, 2^203512006845 is an apocalyptic number.

It is an amenable number.

203512006845 is an abundant number, since it is smaller than the sum of its proper divisors (231735097155).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203512006845 is a wasteful number, since it uses less digits than its factorization.

203512006845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334599 (or 11334593 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 203512006845 in words is "two hundred three billion, five hundred twelve million, six thousand, eight hundred forty-five".