66296849 has 2 divisors, whose sum is σ = 66296850. Its totient is φ = 66296848.

The previous prime is 66296819. The next prime is 66296963. The reversal of 66296849 is 94869266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66259600 + 37249 = 8140^2 + 193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66296849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66296797 and 66296806.

It is not a weakly prime, because it can be changed into another prime (66296809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33148424 + 33148425.

It is an arithmetic number, because the mean of its divisors is an integer number (33148425).

Almost surely, 2^66296849 is an apocalyptic number.

It is an amenable number.

66296849 is a deficient number, since it is larger than the sum of its proper divisors (1).

66296849 is an equidigital number, since it uses as much as digits as its factorization.

66296849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The square root of 66296849 is about 8142.2877006404. The cubic root of 66296849 is about 404.7289737780.

The spelling of 66296849 in words is "sixty-six million, two hundred ninety-six thousand, eight hundred forty-nine".