204430650755 has 4 divisors (see below), whose sum is σ = 245316780912. Its totient is φ = 163544520600.

The previous prime is 204430650737. The next prime is 204430650763. The reversal of 204430650755 is 557056034402.

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

It is a de Polignac number, because none of the positive numbers 2^k-204430650755 is a prime.

It is a super-2 number, since 2×204430650755² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20443065071 + ... + 20443065080.

It is an arithmetic number, because the mean of its divisors is an integer number (61329195228).

Almost surely, 2^204430650755 is an apocalyptic number.

204430650755 is a deficient number, since it is larger than the sum of its proper divisors (40886130157).

204430650755 is an equidigital number, since it uses as much as digits as its factorization.

204430650755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40886130156.

The product of its (nonzero) digits is 504000, while the sum is 41.

The spelling of 204430650755 in words is "two hundred four billion, four hundred thirty million, six hundred fifty thousand, seven hundred fifty-five".