66955283 has 2 divisors, whose sum is σ = 66955284. Its totient is φ = 66955282.

The previous prime is 66955243. The next prime is 66955309. The reversal of 66955283 is 38255966.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66955283 - 2⁶ = 66955219 is a prime.

It is a super-2 number, since 2×66955283² = 8966019843220178, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66955243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33477641 + 33477642.

It is an arithmetic number, because the mean of its divisors is an integer number (33477642).

Almost surely, 2^66955283 is an apocalyptic number.

66955283 is a deficient number, since it is larger than the sum of its proper divisors (1).

66955283 is an equidigital number, since it uses as much as digits as its factorization.

66955283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The square root of 66955283 is about 8182.6207904314. The cubic root of 66955283 is about 406.0644316033.

The spelling of 66955283 in words is "sixty-six million, nine hundred fifty-five thousand, two hundred eighty-three".