200165311051 has 4 divisors (see below), whose sum is σ = 201605349400. Its totient is φ = 198725272704.

The previous prime is 200165311033. The next prime is 200165311057. The reversal of 200165311051 is 150113561002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150113561002 = 2 ⋅75056780501.

It is a cyclic number.

It is not a de Polignac number, because 200165311051 - 2⁹ = 200165310539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200165311057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720018966 + ... + 720019243.

It is an arithmetic number, because the mean of its divisors is an integer number (50401337350).

Almost surely, 2^200165311051 is an apocalyptic number.

200165311051 is a deficient number, since it is larger than the sum of its proper divisors (1440038349).

200165311051 is a wasteful number, since it uses less digits than its factorization.

200165311051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440038348.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 200165311051 its reverse (150113561002), we get a palindrome (350278872053).

The spelling of 200165311051 in words is "two hundred billion, one hundred sixty-five million, three hundred eleven thousand, fifty-one".