205324580238 has 16 divisors (see below), whose sum is σ = 412210567296. Its totient is φ = 68181292280.

The previous prime is 205324580213. The next prime is 205324580269. The reversal of 205324580238 is 832085423502.

It is a super-3 number, since 3×205324580238³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205324580238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65056908 + ... + 65060063.

It is an arithmetic number, because the mean of its divisors is an integer number (25763160456).

Almost surely, 2^205324580238 is an apocalyptic number.

205324580238 is an abundant number, since it is smaller than the sum of its proper divisors (206885987058).

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

205324580238 is a wasteful number, since it uses less digits than its factorization.

205324580238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130117239.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 205324580238 in words is "two hundred five billion, three hundred twenty-four million, five hundred eighty thousand, two hundred thirty-eight".