66834501724 has 12 divisors (see below), whose sum is σ = 117099788400. Its totient is φ = 33377419328.

The previous prime is 66834501703. The next prime is 66834501733. The reversal of 66834501724 is 42710543866.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9954109 + ... + 9960820.

It is an arithmetic number, because the mean of its divisors is an integer number (9758315700).

Almost surely, 2^66834501724 is an apocalyptic number.

It is an amenable number.

66834501724 is a deficient number, since it is larger than the sum of its proper divisors (50265286676).

66834501724 is a wasteful number, since it uses less digits than its factorization.

66834501724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19915772 (or 19915770 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 66834501724 in words is "sixty-six billion, eight hundred thirty-four million, five hundred one thousand, seven hundred twenty-four".