2656053032221 has 16 divisors (see below), whose sum is σ = 2726274530304. Its totient is φ = 2586419731584.

The previous prime is 2656053032189. The next prime is 2656053032251. The reversal of 2656053032221 is 1222303506562.

2656053032221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2656053032221 - 2⁵ = 2656053032189 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 (2656053032251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14440591 + ... + 14623363.

It is an arithmetic number, because the mean of its divisors is an integer number (170392158144).

Almost surely, 2^{2656053032221} is an apocalyptic number.

It is an amenable number.

2656053032221 is a deficient number, since it is larger than the sum of its proper divisors (70221498083).

2656053032221 is a wasteful number, since it uses less digits than its factorization.

2656053032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184380.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 2656053032221 its reverse (1222303506562), we get a palindrome (3878356538783).

The spelling of 2656053032221 in words is "two trillion, six hundred fifty-six billion, fifty-three million, thirty-two thousand, two hundred twenty-one".