66475411 has 2 divisors, whose sum is σ = 66475412. Its totient is φ = 66475410.

The previous prime is 66475403. The next prime is 66475417. The reversal of 66475411 is 11457466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66475411 - 2³ = 66475403 is a prime.

It is not a weakly prime, because it can be changed into another prime (66475417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33237705 + 33237706.

It is an arithmetic number, because the mean of its divisors is an integer number (33237706).

Almost surely, 2^66475411 is an apocalyptic number.

66475411 is a deficient number, since it is larger than the sum of its proper divisors (1).

66475411 is an equidigital number, since it uses as much as digits as its factorization.

66475411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 66475411 is about 8153.2454274356. The cubic root of 66475411 is about 405.0920097816.

The spelling of 66475411 in words is "sixty-six million, four hundred seventy-five thousand, four hundred eleven".