204044160155464 has 8 divisors (see below), whose sum is σ = 382582800291510. Its totient is φ = 102022080077728.

The previous prime is 204044160155447. The next prime is 204044160155471. The reversal of 204044160155464 is 464551061440402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 112492369362564 + 91551790792900 = 10606242^2 + 9568270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752760009709 + ... + 12752760009724.

Almost surely, 2^{204044160155464} is an apocalyptic number.

It is an amenable number.

204044160155464 is a deficient number, since it is larger than the sum of its proper divisors (178538640136046).

204044160155464 is a wasteful number, since it uses less digits than its factorization.

204044160155464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505520019439 (or 25505520019435 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 204044160155464 in words is "two hundred four trillion, forty-four billion, one hundred sixty million, one hundred fifty-five thousand, four hundred sixty-four".