204040240606 has 4 divisors (see below), whose sum is σ = 306060360912. Its totient is φ = 102020120302.

The previous prime is 204040240603. The next prime is 204040240609. The reversal of 204040240606 is 606042040402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 606042040402 = 2 ⋅303021020201.

It is an interprime number because it is at equal distance from previous prime (204040240603) and next prime (204040240609).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204040240603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010060150 + ... + 51010060153.

It is an arithmetic number, because the mean of its divisors is an integer number (76515090228).

Almost surely, 2^204040240606 is an apocalyptic number.

204040240606 is a deficient number, since it is larger than the sum of its proper divisors (102020120306).

204040240606 is a wasteful number, since it uses less digits than its factorization.

204040240606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102020120305.

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 204040240606 in words is "two hundred four billion, forty million, two hundred forty thousand, six hundred six".