10206255526081 has 2 divisors, whose sum is σ = 10206255526082. Its totient is φ = 10206255526080.

The previous prime is 10206255526079. The next prime is 10206255526097. The reversal of 10206255526081 is 18062555260201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8675057169025 + 1531198357056 = 2945345^2 + 1237416^2 .

It is an emirp because it is prime and its reverse (18062555260201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10206255526081 - 2¹ = 10206255526079 is a prime.

It is a super-2 number, since 2×10206255526081² (a number of 27 digits) contains 22 as substring.

Together with 10206255526079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10206255526381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5103127763040 + 5103127763041.

It is an arithmetic number, because the mean of its divisors is an integer number (5103127763041).

Almost surely, 2^{10206255526081} is an apocalyptic number.

It is an amenable number.

10206255526081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10206255526081 is an equidigital number, since it uses as much as digits as its factorization.

10206255526081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 10206255526081 in words is "ten trillion, two hundred six billion, two hundred fifty-five million, five hundred twenty-six thousand, eighty-one".