66372337 has 2 divisors, whose sum is σ = 66372338. Its totient is φ = 66372336.

The previous prime is 66372323. The next prime is 66372343. The reversal of 66372337 is 73327366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60202081 + 6170256 = 7759^2 + 2484^2 .

It is a cyclic number.

It is not a de Polignac number, because 66372337 - 2¹¹ = 66370289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66372296 and 66372305.

It is not a weakly prime, because it can be changed into another prime (66372307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33186168 + 33186169.

It is an arithmetic number, because the mean of its divisors is an integer number (33186169).

Almost surely, 2^66372337 is an apocalyptic number.

It is an amenable number.

66372337 is a deficient number, since it is larger than the sum of its proper divisors (1).

66372337 is an equidigital number, since it uses as much as digits as its factorization.

66372337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 37.

The square root of 66372337 is about 8146.9219340804. The cubic root of 66372337 is about 404.8825285478.

The spelling of 66372337 in words is "sixty-six million, three hundred seventy-two thousand, three hundred thirty-seven".