200845717845 has 64 divisors (see below), whose sum is σ = 361583308800. Its totient is φ = 94700136960.

The previous prime is 200845717777. The next prime is 200845717873. The reversal of 200845717845 is 548717548002.

It is a happy number.

It is not a de Polignac number, because 200845717845 - 2¹⁶ = 200845652309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104905 + ... + 642414.

It is an arithmetic number, because the mean of its divisors is an integer number (5649739200).

Almost surely, 2^200845717845 is an apocalyptic number.

It is an amenable number.

200845717845 is a deficient number, since it is larger than the sum of its proper divisors (160737590955).

200845717845 is a wasteful number, since it uses less digits than its factorization.

200845717845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747410.

The product of its (nonzero) digits is 2508800, while the sum is 51.

It can be divided in two parts, 200845 and 717845, that added together give a triangular number (918690 = T₁₃₅₅).

The spelling of 200845717845 in words is "two hundred billion, eight hundred forty-five million, seven hundred seventeen thousand, eight hundred forty-five".