66226933 has 2 divisors, whose sum is σ = 66226934. Its totient is φ = 66226932.

The previous prime is 66226921. The next prime is 66226949. The reversal of 66226933 is 33962266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65318724 + 908209 = 8082^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 66226933 - 2¹³ = 66218741 is a prime.

It is a super-5 number, since 5×66226933⁵ (a number of 40 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66226892 and 66226901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66226333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33113466 + 33113467.

It is an arithmetic number, because the mean of its divisors is an integer number (33113467).

Almost surely, 2^66226933 is an apocalyptic number.

It is an amenable number.

66226933 is a deficient number, since it is larger than the sum of its proper divisors (1).

66226933 is an equidigital number, since it uses as much as digits as its factorization.

66226933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 37.

The square root of 66226933 is about 8137.9931801397. The cubic root of 66226933 is about 404.5866493466.

The spelling of 66226933 in words is "sixty-six million, two hundred twenty-six thousand, nine hundred thirty-three".