2204665064551 has 4 divisors (see below), whose sum is σ = 2204668846512. Its totient is φ = 2204661282592.

The previous prime is 2204665064549. The next prime is 2204665064587. The reversal of 2204665064551 is 1554605664022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2204665064551 - 2¹ = 2204665064549 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 (2204665064351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810946 + ... + 2250991.

It is an arithmetic number, because the mean of its divisors is an integer number (551167211628).

Almost surely, 2^{2204665064551} is an apocalyptic number.

2204665064551 is a deficient number, since it is larger than the sum of its proper divisors (3781961).

2204665064551 is an equidigital number, since it uses as much as digits as its factorization.

2204665064551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781960.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 2204665064551 in words is "two trillion, two hundred four billion, six hundred sixty-five million, sixty-four thousand, five hundred fifty-one".