2656217052073 has 8 divisors (see below), whose sum is σ = 2860919875016. Its totient is φ = 2451568291200.

The previous prime is 2656217052019. The next prime is 2656217052103. The reversal of 2656217052073 is 3702507126562.

It can be written as a sum of positive squares in 4 ways, for example, as 81389242944 + 2574827809129 = 285288^2 + 1604627^2 .

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 2656217052073 - 2¹³ = 2656217043881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656217052373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13413438 + ... + 13610023.

It is an arithmetic number, because the mean of its divisors is an integer number (357614984377).

Almost surely, 2^{2656217052073} is an apocalyptic number.

It is an amenable number.

2656217052073 is a deficient number, since it is larger than the sum of its proper divisors (204702822943).

2656217052073 is a wasteful number, since it uses less digits than its factorization.

2656217052073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27031035.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 2656217052073 in words is "two trillion, six hundred fifty-six billion, two hundred seventeen million, fifty-two thousand, seventy-three".