2661201107027 has 2 divisors, whose sum is σ = 2661201107028. Its totient is φ = 2661201107026.

The previous prime is 2661201107009. The next prime is 2661201107101. The reversal of 2661201107027 is 7207011021662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2661201107027 - 2¹⁶ = 2661201041491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2661201107627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330600553513 + 1330600553514.

It is an arithmetic number, because the mean of its divisors is an integer number (1330600553514).

Almost surely, 2^{2661201107027} is an apocalyptic number.

2661201107027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661201107027 is an equidigital number, since it uses as much as digits as its factorization.

2661201107027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

Adding to 2661201107027 its reverse (7207011021662), we get a palindrome (9868212128689).

The spelling of 2661201107027 in words is "two trillion, six hundred sixty-one billion, two hundred one million, one hundred seven thousand, twenty-seven".