66334531684 has 12 divisors (see below), whose sum is σ = 116088919408. Its totient is φ = 33166269000.

The previous prime is 66334531663. The next prime is 66334531699. The reversal of 66334531684 is 48613543366.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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, 87882 + ... + 374689.

Almost surely, 2^66334531684 is an apocalyptic number.

It is an amenable number.

66334531684 is a deficient number, since it is larger than the sum of its proper divisors (49754387724).

66334531684 is a wasteful number, since it uses less digits than its factorization.

66334531684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498426 (or 498424 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 49.

The spelling of 66334531684 in words is "sixty-six billion, three hundred thirty-four million, five hundred thirty-one thousand, six hundred eighty-four".