2205353134645 has 8 divisors (see below), whose sum is σ = 2710970682840. Its totient is φ = 1721251226880.

The previous prime is 2205353134603. The next prime is 2205353134657. The reversal of 2205353134645 is 5464313535022.

It can be written as a sum of positive squares in 4 ways, for example, as 149430179844 + 2055922954801 = 386562^2 + 1433849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2205353134645 - 2¹³ = 2205353126453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5378909880 + ... + 5378910289.

It is an arithmetic number, because the mean of its divisors is an integer number (338871335355).

Almost surely, 2^{2205353134645} is an apocalyptic number.

It is an amenable number.

2205353134645 is a deficient number, since it is larger than the sum of its proper divisors (505617548195).

2205353134645 is a wasteful number, since it uses less digits than its factorization.

2205353134645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10757820215.

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 2205353134645 its reverse (5464313535022), we get a palindrome (7669666669667).

The spelling of 2205353134645 in words is "two trillion, two hundred five billion, three hundred fifty-three million, one hundred thirty-four thousand, six hundred forty-five".