66426127 has 2 divisors, whose sum is σ = 66426128. Its totient is φ = 66426126.

The previous prime is 66426121. The next prime is 66426167. The reversal of 66426127 is 72162466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66426127 - 2⁷ = 66425999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66426092 and 66426101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66426121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33213063 + 33213064.

It is an arithmetic number, because the mean of its divisors is an integer number (33213064).

Almost surely, 2^66426127 is an apocalyptic number.

66426127 is a deficient number, since it is larger than the sum of its proper divisors (1).

66426127 is an equidigital number, since it uses as much as digits as its factorization.

66426127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 66426127 is about 8150.2225122999. Note that the first 3 decimals coincide. The cubic root of 66426127 is about 404.9918750593.

It can be divided in two parts, 6642 and 6127, that added together give a square (12769 = 113²).

The spelling of 66426127 in words is "sixty-six million, four hundred twenty-six thousand, one hundred twenty-seven".