2204164837449 has 27 divisors (see below), whose sum is σ = 3201785736877. Its totient is φ = 1461185640600.

The previous prime is 2204164837417. The next prime is 2204164837487. The reversal of 2204164837449 is 9447384614022.

The square root of 2204164837449 is 1484643.

It is a perfect power (a square), and thus also a powerful number.

2204164837449 is a `hidden beast` number, since 2 + 2 + 0 + 4 + 164 + 8 + 37 + 449 = 666.

It is not a de Polignac number, because 2204164837449 - 2⁵ = 2204164837417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2204164837395 and 2204164837404.

It is not an unprimeable number, because it can be changed into a prime (2204164837489) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 850699144 + ... + 850701734.

Almost surely, 2^{2204164837449} is an apocalyptic number.

2204164837449 is the 1484643-rd square number.

2204164837449 is the 742322-nd centered octagonal number.

It is an amenable number.

2204164837449 is a deficient number, since it is larger than the sum of its proper divisors (997620899428).

2204164837449 is an frugal number, since it uses more digits than its factorization.

2204164837449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570 (or 2785 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 2204164837449 in words is "two trillion, two hundred four billion, one hundred sixty-four million, eight hundred thirty-seven thousand, four hundred forty-nine".