66164027 has 2 divisors, whose sum is σ = 66164028. Its totient is φ = 66164026.

The previous prime is 66164011. The next prime is 66164053. The reversal of 66164027 is 72046166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66164027 - 2⁴ = 66164011 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66163984 and 66164002.

It is not a weakly prime, because it can be changed into another prime (66160027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33082013 + 33082014.

It is an arithmetic number, because the mean of its divisors is an integer number (33082014).

Almost surely, 2^66164027 is an apocalyptic number.

66164027 is a deficient number, since it is larger than the sum of its proper divisors (1).

66164027 is an equidigital number, since it uses as much as digits as its factorization.

66164027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 66164027 is about 8134.1273041427. The cubic root of 66164027 is about 404.4585091822.

The spelling of 66164027 in words is "sixty-six million, one hundred sixty-four thousand, twenty-seven".