6060020066 has 4 divisors (see below), whose sum is σ = 9090030102. Its totient is φ = 3030010032.

The previous prime is 6060020023. The next prime is 6060020069. The reversal of 6060020066 is 6600200606.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6600200606 = 2 ⋅3300100303.

It can be written as a sum of positive squares in only one way, i.e., 6052062025 + 7958041 = 77795^2 + 2821^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6060020069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515005015 + ... + 1515005018.

Almost surely, 2^6060020066 is an apocalyptic number.

6060020066 is a deficient number, since it is larger than the sum of its proper divisors (3030010036).

6060020066 is a wasteful number, since it uses less digits than its factorization.

6060020066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030010035.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 6060020066 is about 77846.1307066703. The cubic root of 6060020066 is about 1823.1595949621.

The spelling of 6060020066 in words is "six billion, sixty million, twenty thousand, sixty-six".