66061010033 has 2 divisors, whose sum is σ = 66061010034. Its totient is φ = 66061010032.

The previous prime is 66061010023. The next prime is 66061010051. The reversal of 66061010033 is 33001016066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66055168144 + 5841889 = 257012^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 66061010033 - 2¹² = 66061005937 is a prime.

It is a super-2 number, since 2×66061010033² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66061009984 and 66061010011.

It is not a weakly prime, because it can be changed into another prime (66061010023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33030505016 + 33030505017.

It is an arithmetic number, because the mean of its divisors is an integer number (33030505017).

Almost surely, 2^66061010033 is an apocalyptic number.

It is an amenable number.

66061010033 is a deficient number, since it is larger than the sum of its proper divisors (1).

66061010033 is an equidigital number, since it uses as much as digits as its factorization.

66061010033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 66061010033 its reverse (33001016066), we get a palindrome (99062026099).

The spelling of 66061010033 in words is "sixty-six billion, sixty-one million, ten thousand, thirty-three".