66675422 has 16 divisors (see below), whose sum is σ = 111428352. Its totient is φ = 29661720.

The previous prime is 66675421. The next prime is 66675449. The reversal of 66675422 is 22457666.

It is a super-2 number, since 2×66675422² = 8891223797756168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66675421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31208 + ... + 33275.

It is an arithmetic number, because the mean of its divisors is an integer number (6964272).

Almost surely, 2^66675422 is an apocalyptic number.

66675422 is a deficient number, since it is larger than the sum of its proper divisors (44752930).

66675422 is a wasteful number, since it uses less digits than its factorization.

66675422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64543.

The product of its digits is 120960, while the sum is 38.

The square root of 66675422 is about 8165.5019441551. The cubic root of 66675422 is about 405.4978828298.

The spelling of 66675422 in words is "sixty-six million, six hundred seventy-five thousand, four hundred twenty-two".