202266508081 has 4 divisors (see below), whose sum is σ = 220654372464. Its totient is φ = 183878643700.

The previous prime is 202266508061. The next prime is 202266508109. The reversal of 202266508081 is 180805662202.

202266508081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202266508081 - 2¹¹ = 202266506033 is a prime.

It is a super-2 number, since 2×202266508081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202266508051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9193932175 + ... + 9193932196.

It is an arithmetic number, because the mean of its divisors is an integer number (55163593116).

Almost surely, 2^202266508081 is an apocalyptic number.

It is an amenable number.

202266508081 is a deficient number, since it is larger than the sum of its proper divisors (18387864383).

202266508081 is a wasteful number, since it uses less digits than its factorization.

202266508081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18387864382.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 202266508081 in words is "two hundred two billion, two hundred sixty-six million, five hundred eight thousand, eighty-one".