66937163 has 2 divisors, whose sum is σ = 66937164. Its totient is φ = 66937162.

The previous prime is 66937159. The next prime is 66937183. The reversal of 66937163 is 36173966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66937163 - 2² = 66937159 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66937163.

It is not a weakly prime, because it can be changed into another prime (66937103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33468581 + 33468582.

It is an arithmetic number, because the mean of its divisors is an integer number (33468582).

Almost surely, 2^66937163 is an apocalyptic number.

66937163 is a deficient number, since it is larger than the sum of its proper divisors (1).

66937163 is an equidigital number, since it uses as much as digits as its factorization.

66937163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 41.

The square root of 66937163 is about 8181.5134907913. The cubic root of 66937163 is about 406.0277974448.

The spelling of 66937163 in words is "sixty-six million, nine hundred thirty-seven thousand, one hundred sixty-three".