66732079 has 2 divisors, whose sum is σ = 66732080. Its totient is φ = 66732078.

The previous prime is 66732059. The next prime is 66732097. The reversal of 66732079 is 97023766.

Together with next prime (66732097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66732079 - 2¹¹ = 66730031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66732049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33366039 + 33366040.

It is an arithmetic number, because the mean of its divisors is an integer number (33366040).

Almost surely, 2^66732079 is an apocalyptic number.

66732079 is a deficient number, since it is larger than the sum of its proper divisors (1).

66732079 is an equidigital number, since it uses as much as digits as its factorization.

66732079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 66732079 is about 8168.9704981717. The cubic root of 66732079 is about 405.6127066960.

The spelling of 66732079 in words is "sixty-six million, seven hundred thirty-two thousand, seventy-nine".