66532337 has 2 divisors, whose sum is σ = 66532338. Its totient is φ = 66532336.

The previous prime is 66532289. The next prime is 66532363. The reversal of 66532337 is 73323566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60202081 + 6330256 = 7759^2 + 2516^2 .

It is a cyclic number.

It is not a de Polignac number, because 66532337 - 2¹⁶ = 66466801 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66532297 and 66532306.

It is not a weakly prime, because it can be changed into another prime (66532937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33266168 + 33266169.

It is an arithmetic number, because the mean of its divisors is an integer number (33266169).

Almost surely, 2^66532337 is an apocalyptic number.

It is an amenable number.

66532337 is a deficient number, since it is larger than the sum of its proper divisors (1).

66532337 is an equidigital number, since it uses as much as digits as its factorization.

66532337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 35.

The square root of 66532337 is about 8156.7356828575. The cubic root of 66532337 is about 405.2076098609.

The spelling of 66532337 in words is "sixty-six million, five hundred thirty-two thousand, three hundred thirty-seven".