665150033 has 2 divisors, whose sum is σ = 665150034. Its totient is φ = 665150032.

The previous prime is 665150029. The next prime is 665150069. The reversal of 665150033 is 330051566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 653671489 + 11478544 = 25567^2 + 3388^2 .

It is a cyclic number.

It is not a de Polignac number, because 665150033 - 2² = 665150029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 665149978 and 665150005.

It is not a weakly prime, because it can be changed into another prime (665150023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332575016 + 332575017.

It is an arithmetic number, because the mean of its divisors is an integer number (332575017).

Almost surely, 2^665150033 is an apocalyptic number.

It is an amenable number.

665150033 is a deficient number, since it is larger than the sum of its proper divisors (1).

665150033 is an equidigital number, since it uses as much as digits as its factorization.

665150033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 665150033 is about 25790.5027674918. The cubic root of 665150033 is about 872.9175109812.

The spelling of 665150033 in words is "six hundred sixty-five million, one hundred fifty thousand, thirty-three".