66101027 has 2 divisors, whose sum is σ = 66101028. Its totient is φ = 66101026.

The previous prime is 66101023. The next prime is 66101029. The reversal of 66101027 is 72010166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66101027 - 2² = 66101023 is a prime.

Together with 66101029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66100993 and 66101011.

It is not a weakly prime, because it can be changed into another prime (66101023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33050513 + 33050514.

It is an arithmetic number, because the mean of its divisors is an integer number (33050514).

Almost surely, 2^66101027 is an apocalyptic number.

66101027 is a deficient number, since it is larger than the sum of its proper divisors (1).

66101027 is an equidigital number, since it uses as much as digits as its factorization.

66101027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 66101027 is about 8130.2538090763. The cubic root of 66101027 is about 404.3300961106.

The spelling of 66101027 in words is "sixty-six million, one hundred one thousand, twenty-seven".