66687482 has 8 divisors (see below), whose sum is σ = 100388052. Its totient is φ = 33224800.

The previous prime is 66687469. The next prime is 66687493. The reversal of 66687482 is 28478666.

It can be written as a sum of positive squares in 2 ways, for example, as 66080641 + 606841 = 8129^2 + 779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 58769 + ... + 59892.

Almost surely, 2^66687482 is an apocalyptic number.

66687482 is a deficient number, since it is larger than the sum of its proper divisors (33700570).

66687482 is a wasteful number, since it uses less digits than its factorization.

66687482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118944.

The product of its digits is 774144, while the sum is 47.

The square root of 66687482 is about 8166.2403834323. The cubic root of 66687482 is about 405.5223296675.

The spelling of 66687482 in words is "sixty-six million, six hundred eighty-seven thousand, four hundred eighty-two".