204150434061 has 24 divisors (see below), whose sum is σ = 316780464000. Its totient is φ = 116606189952.

The previous prime is 204150434057. The next prime is 204150434069. The reversal of 204150434061 is 160434051402.

It is not a de Polignac number, because 204150434061 - 2² = 204150434057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204150434069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32565 + ... + 639813.

It is an arithmetic number, because the mean of its divisors is an integer number (13199186000).

Almost surely, 2^204150434061 is an apocalyptic number.

204150434061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204150434061 is a deficient number, since it is larger than the sum of its proper divisors (112630029939).

204150434061 is a wasteful number, since it uses less digits than its factorization.

204150434061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609553 (or 609546 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 204150434061 its reverse (160434051402), we get a palindrome (364584485463).

The spelling of 204150434061 in words is "two hundred four billion, one hundred fifty million, four hundred thirty-four thousand, sixty-one".