204770574155 has 16 divisors (see below), whose sum is σ = 282003240960. Its totient is φ = 139826595552.

The previous prime is 204770574119. The next prime is 204770574187. The reversal of 204770574155 is 551475077402.

It is not a de Polignac number, because 204770574155 - 2¹⁶ = 204770508619 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12231359 + ... + 12248088.

It is an arithmetic number, because the mean of its divisors is an integer number (17625202560).

Almost surely, 2^204770574155 is an apocalyptic number.

204770574155 is a deficient number, since it is larger than the sum of its proper divisors (77232666805).

204770574155 is a wasteful number, since it uses less digits than its factorization.

204770574155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24479698.

The product of its (nonzero) digits is 1372000, while the sum is 47.

The spelling of 204770574155 in words is "two hundred four billion, seven hundred seventy million, five hundred seventy-four thousand, one hundred fifty-five".