202155040027 has 2 divisors, whose sum is σ = 202155040028. Its totient is φ = 202155040026.

The previous prime is 202155039959. The next prime is 202155040051. The reversal of 202155040027 is 720040551202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202155040027 - 2³¹ = 200007556379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202155039977 and 202155040004.

It is not a weakly prime, because it can be changed into another prime (202155040727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101077520013 + 101077520014.

It is an arithmetic number, because the mean of its divisors is an integer number (101077520014).

Almost surely, 2^202155040027 is an apocalyptic number.

202155040027 is a deficient number, since it is larger than the sum of its proper divisors (1).

202155040027 is an equidigital number, since it uses as much as digits as its factorization.

202155040027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 28.

Adding to 202155040027 its reverse (720040551202), we get a palindrome (922195591229).

The spelling of 202155040027 in words is "two hundred two billion, one hundred fifty-five million, forty thousand, twenty-seven".