204143147134464 has 80 divisors (see below), whose sum is σ = 543915432965520. Its totient is φ = 68039541473280.

The previous prime is 204143147134307. The next prime is 204143147134513. The reversal of 204143147134464 is 464431741341402.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4814854 + ... + 20771834.

It is an arithmetic number, because the mean of its divisors is an integer number (6798942912069).

Almost surely, 2^{204143147134464} is an apocalyptic number.

204143147134464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204143147134464 is an abundant number, since it is smaller than the sum of its proper divisors (339772285831056).

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

204143147134464 is an equidigital number, since it uses as much as digits as its factorization.

204143147134464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15965331 (or 15965315 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 48.

Adding to 204143147134464 its reverse (464431741341402), we get a palindrome (668574888475866).

The spelling of 204143147134464 in words is "two hundred four trillion, one hundred forty-three billion, one hundred forty-seven million, one hundred thirty-four thousand, four hundred sixty-four".