200540385061 has 2 divisors, whose sum is σ = 200540385062. Its totient is φ = 200540385060.

The previous prime is 200540385013. The next prime is 200540385079. The reversal of 200540385061 is 160583045002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142039288161 + 58501096900 = 376881^2 + 241870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200540385061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200540386061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100270192530 + 100270192531.

It is an arithmetic number, because the mean of its divisors is an integer number (100270192531).

Almost surely, 2^200540385061 is an apocalyptic number.

It is an amenable number.

200540385061 is a deficient number, since it is larger than the sum of its proper divisors (1).

200540385061 is an equidigital number, since it uses as much as digits as its factorization.

200540385061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 200540385061 in words is "two hundred billion, five hundred forty million, three hundred eighty-five thousand, sixty-one".