66363337 has 2 divisors, whose sum is σ = 66363338. Its totient is φ = 66363336.

The previous prime is 66363317. The next prime is 66363347. The reversal of 66363337 is 73336366.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61214976 + 5148361 = 7824^2 + 2269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66363337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66363296 and 66363305.

It is not a weakly prime, because it can be changed into another prime (66363307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33181668 + 33181669.

It is an arithmetic number, because the mean of its divisors is an integer number (33181669).

Almost surely, 2^66363337 is an apocalyptic number.

It is an amenable number.

66363337 is a deficient number, since it is larger than the sum of its proper divisors (1).

66363337 is an equidigital number, since it uses as much as digits as its factorization.

66363337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 37.

The square root of 66363337 is about 8146.3695595032. The cubic root of 66363337 is about 404.8642272111.

It can be divided in two parts, 663 and 63337, that added together give a cube (64000 = 40³).

The spelling of 66363337 in words is "sixty-six million, three hundred sixty-three thousand, three hundred thirty-seven".