201043505818045 has 64 divisors (see below), whose sum is σ = 269178439477248. Its totient is φ = 142913696544000.

The previous prime is 201043505818033. The next prime is 201043505818079. The reversal of 201043505818045 is 540818505340102.

It is not a de Polignac number, because 201043505818045 - 2¹⁷ = 201043505686973 is a prime.

It is a super-2 number, since 2×201043505818045² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201043505817986 and 201043505818004.

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, 4518723250 + ... + 4518767740.

It is an arithmetic number, because the mean of its divisors is an integer number (4205913116832).

Almost surely, 2^{201043505818045} is an apocalyptic number.

It is an amenable number.

201043505818045 is a deficient number, since it is larger than the sum of its proper divisors (68134933659203).

201043505818045 is a wasteful number, since it uses less digits than its factorization.

201043505818045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52994.

The product of its (nonzero) digits is 768000, while the sum is 46.

The spelling of 201043505818045 in words is "two hundred one trillion, forty-three billion, five hundred five million, eight hundred eighteen thousand, forty-five".