204312164546 has 16 divisors (see below), whose sum is σ = 350256073344. Its totient is φ = 87560694144.

The previous prime is 204312164543. The next prime is 204312164603. The reversal of 204312164546 is 645461213402.

204312164546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204312164546² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204312164543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887411 + ... + 1093673.

It is an arithmetic number, because the mean of its divisors is an integer number (21891004584).

Almost surely, 2^204312164546 is an apocalyptic number.

204312164546 is a deficient number, since it is larger than the sum of its proper divisors (145943908798).

204312164546 is a wasteful number, since it uses less digits than its factorization.

204312164546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277025.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 204312164546 its reverse (645461213402), we get a palindrome (849773377948).

The spelling of 204312164546 in words is "two hundred four billion, three hundred twelve million, one hundred sixty-four thousand, five hundred forty-six".