205254322430 has 8 divisors (see below), whose sum is σ = 369457780392. Its totient is φ = 82101728968.

The previous prime is 205254322393. The next prime is 205254322447. The reversal of 205254322430 is 34223452502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×205254322430² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10262716112 + ... + 10262716131.

It is an arithmetic number, because the mean of its divisors is an integer number (46182222549).

Almost surely, 2^205254322430 is an apocalyptic number.

205254322430 is a deficient number, since it is larger than the sum of its proper divisors (164203457962).

205254322430 is a wasteful number, since it uses less digits than its factorization.

205254322430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20525432250.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 205254322430 its reverse (34223452502), we get a palindrome (239477774932).

The spelling of 205254322430 in words is "two hundred five billion, two hundred fifty-four million, three hundred twenty-two thousand, four hundred thirty".