204106564321464 has 32 divisors (see below), whose sum is σ = 583161612347520. Its totient is φ = 58316161234656.

The previous prime is 204106564321399. The next prime is 204106564321501. The reversal of 204106564321464 is 464123465601402.

It is a super-2 number, since 2×204106564321464² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 607460012694 + ... + 607460013029.

It is an arithmetic number, because the mean of its divisors is an integer number (18223800385860).

Almost surely, 2^{204106564321464} is an apocalyptic number.

204106564321464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204106564321464 is an abundant number, since it is smaller than the sum of its proper divisors (379055048026056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204106564321464 is a wasteful number, since it uses less digits than its factorization.

204106564321464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214920025739 (or 1214920025735 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 204106564321464 in words is "two hundred four trillion, one hundred six billion, five hundred sixty-four million, three hundred twenty-one thousand, four hundred sixty-four".