66481514 has 24 divisors (see below), whose sum is σ = 113403780. Its totient is φ = 29173760.

The previous prime is 66481507. The next prime is 66481517. The reversal of 66481514 is 41518466.

It can be written as a sum of positive squares in 2 ways, for example, as 59799289 + 6682225 = 7733^2 + 2585^2 .

It is a super-3 number, since 3×66481514³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (66481517) 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 11 ways as a sum of consecutive naturals, for example, 2282 + ... + 11754.

Almost surely, 2^66481514 is an apocalyptic number.

66481514 is a deficient number, since it is larger than the sum of its proper divisors (46922266).

66481514 is a wasteful number, since it uses less digits than its factorization.

66481514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9526 (or 9515 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 66481514 is about 8153.6196869857. The cubic root of 66481514 is about 405.1044063497.

The spelling of 66481514 in words is "sixty-six million, four hundred eighty-one thousand, five hundred fourteen".