205000042165230 has 64 divisors (see below), whose sum is σ = 529861968659520. Its totient is φ = 50460053047296.

The previous prime is 205000042165153. The next prime is 205000042165231. The reversal of 205000042165230 is 32561240000502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205000042165231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5411824 + ... + 20959196.

It is an arithmetic number, because the mean of its divisors is an integer number (8279093260305).

Almost surely, 2^{205000042165230} is an apocalyptic number.

205000042165230 is an abundant number, since it is smaller than the sum of its proper divisors (324861926494290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205000042165230 is a wasteful number, since it uses less digits than its factorization.

205000042165230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15581205.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 205000042165230 its reverse (32561240000502), we get a palindrome (237561282165732).

The spelling of 205000042165230 in words is "two hundred five trillion, forty-two million, one hundred sixty-five thousand, two hundred thirty".