66260933 has 2 divisors, whose sum is σ = 66260934. Its totient is φ = 66260932.

The previous prime is 66260899. The next prime is 66260947. The reversal of 66260933 is 33906266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46485124 + 19775809 = 6818^2 + 4447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66260933 is a prime.

It is a super-2 number, since 2×66260933² = 8781022484060978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66260893 and 66260902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66260983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33130466 + 33130467.

It is an arithmetic number, because the mean of its divisors is an integer number (33130467).

Almost surely, 2^66260933 is an apocalyptic number.

It is an amenable number.

66260933 is a deficient number, since it is larger than the sum of its proper divisors (1).

66260933 is an equidigital number, since it uses as much as digits as its factorization.

66260933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 66260933 is about 8140.0818791951. The cubic root of 66260933 is about 404.6558739158.

The spelling of 66260933 in words is "sixty-six million, two hundred sixty thousand, nine hundred thirty-three".