2205253653661 has 8 divisors (see below), whose sum is σ = 2223294365600. Its totient is φ = 2187244021680.

The previous prime is 2205253653637. The next prime is 2205253653683. The reversal of 2205253653661 is 1663563525022.

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

It is a cyclic number.

It is not a de Polignac number, because 2205253653661 - 2³⁵ = 2170893915293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205253653961) by changing a digit.

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, 7627491 + ... + 7911328.

It is an arithmetic number, because the mean of its divisors is an integer number (277911795700).

Almost surely, 2^{2205253653661} is an apocalyptic number.

It is an amenable number.

2205253653661 is a deficient number, since it is larger than the sum of its proper divisors (18040711939).

2205253653661 is a wasteful number, since it uses less digits than its factorization.

2205253653661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15539979.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 2205253653661 in words is "two trillion, two hundred five billion, two hundred fifty-three million, six hundred fifty-three thousand, six hundred sixty-one".