205614655201 has 2 divisors, whose sum is σ = 205614655202. Its totient is φ = 205614655200.

The previous prime is 205614655199. The next prime is 205614655271. The reversal of 205614655201 is 102556416502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128898950625 + 76715704576 = 359025^2 + 276976^2 .

It is a cyclic number.

It is not a de Polignac number, because 205614655201 - 2¹ = 205614655199 is a prime.

It is a super-2 number, since 2×205614655201² (a number of 23 digits) contains 22 as substring.

Together with 205614655199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (205614655271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102807327600 + 102807327601.

It is an arithmetic number, because the mean of its divisors is an integer number (102807327601).

Almost surely, 2^205614655201 is an apocalyptic number.

It is an amenable number.

205614655201 is a deficient number, since it is larger than the sum of its proper divisors (1).

205614655201 is an equidigital number, since it uses as much as digits as its factorization.

205614655201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 205614655201 in words is "two hundred five billion, six hundred fourteen million, six hundred fifty-five thousand, two hundred one".