66422841 has 16 divisors (see below), whose sum is σ = 93426240. Its totient is φ = 41860800.

The previous prime is 66422761. The next prime is 66422861. The reversal of 66422841 is 14822466.

It is not a de Polignac number, because 66422841 - 2⁹ = 66422329 is a prime.

It is a super-2 number, since 2×66422841² = 8823987613022562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66422861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33991 + ... + 35891.

It is an arithmetic number, because the mean of its divisors is an integer number (5839140).

Almost surely, 2^66422841 is an apocalyptic number.

It is an amenable number.

66422841 is a deficient number, since it is larger than the sum of its proper divisors (27003399).

66422841 is a wasteful number, since it uses less digits than its factorization.

66422841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536.

The product of its digits is 18432, while the sum is 33.

The square root of 66422841 is about 8150.0209202185. The cubic root of 66422841 is about 404.9851968374.

The spelling of 66422841 in words is "sixty-six million, four hundred twenty-two thousand, eight hundred forty-one".