66062237 has 2 divisors, whose sum is σ = 66062238. Its totient is φ = 66062236.

The previous prime is 66062231. The next prime is 66062239. The reversal of 66062237 is 73226066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47623801 + 18438436 = 6901^2 + 4294^2 .

It is a cyclic number.

It is not a de Polignac number, because 66062237 - 2¹⁸ = 65800093 is a prime.

Together with 66062239, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66062231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33031118 + 33031119.

It is an arithmetic number, because the mean of its divisors is an integer number (33031119).

Almost surely, 2^66062237 is an apocalyptic number.

It is an amenable number.

66062237 is a deficient number, since it is larger than the sum of its proper divisors (1).

66062237 is an equidigital number, since it uses as much as digits as its factorization.

66062237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 66062237 is about 8127.8679246159. The cubic root of 66062237 is about 404.2509897584.

The spelling of 66062237 in words is "sixty-six million, sixty-two thousand, two hundred thirty-seven".