205242415034 has 4 divisors (see below), whose sum is σ = 307863622554. Its totient is φ = 102621207516.

The previous prime is 205242415013. The next prime is 205242415061. The reversal of 205242415034 is 430514242502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133811834809 + 71430580225 = 365803^2 + 267265^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51310603757 + ... + 51310603760.

Almost surely, 2^205242415034 is an apocalyptic number.

205242415034 is a deficient number, since it is larger than the sum of its proper divisors (102621207520).

205242415034 is a wasteful number, since it uses less digits than its factorization.

205242415034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102621207519.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 205242415034 its reverse (430514242502), we get a palindrome (635756657536).

The spelling of 205242415034 in words is "two hundred five billion, two hundred forty-two million, four hundred fifteen thousand, thirty-four".