200243232243551 has 6 divisors (see below), whose sum is σ = 232936004854800. Its totient is φ = 171637056208716.

The previous prime is 200243232243503. The next prime is 200243232243563. The reversal of 200243232243551 is 155342232342002.

It is a happy number.

It is not a de Polignac number, because 200243232243551 - 2¹⁸ = 200243231981407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200243232243581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2043298288151 + ... + 2043298288248.

It is an arithmetic number, because the mean of its divisors is an integer number (38822667475800).

Almost surely, 2^{200243232243551} is an apocalyptic number.

200243232243551 is a deficient number, since it is larger than the sum of its proper divisors (32692772611249).

200243232243551 is an equidigital number, since it uses as much as digits as its factorization.

200243232243551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086596576413 (or 4086596576406 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 200243232243551 its reverse (155342232342002), we get a palindrome (355585464585553).

The spelling of 200243232243551 in words is "two hundred trillion, two hundred forty-three billion, two hundred thirty-two million, two hundred forty-three thousand, five hundred fifty-one".