204694535145 has 32 divisors (see below), whose sum is σ = 329949849600. Its totient is φ = 108357948864.

The previous prime is 204694535113. The next prime is 204694535179. The reversal of 204694535145 is 541535496402.

It is not a de Polignac number, because 204694535145 - 2⁵ = 204694535113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204694535094 and 204694535103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10496574 + ... + 10516056.

It is an arithmetic number, because the mean of its divisors is an integer number (10310932800).

Almost surely, 2^204694535145 is an apocalyptic number.

It is an amenable number.

204694535145 is a deficient number, since it is larger than the sum of its proper divisors (125255314455).

204694535145 is a wasteful number, since it uses less digits than its factorization.

204694535145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24669.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 204694535145 in words is "two hundred four billion, six hundred ninety-four million, five hundred thirty-five thousand, one hundred forty-five".