66791752622 has 16 divisors (see below), whose sum is σ = 114504192000. Its totient is φ = 28624025688.

The previous prime is 66791752603. The next prime is 66791752631. The reversal of 66791752622 is 22625719766.

It is a super-3 number, since 3×66791752622³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 437723 + ... + 570249.

It is an arithmetic number, because the mean of its divisors is an integer number (7156512000).

Almost surely, 2^66791752622 is an apocalyptic number.

66791752622 is a deficient number, since it is larger than the sum of its proper divisors (47712439378).

66791752622 is a wasteful number, since it uses less digits than its factorization.

66791752622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168535.

The product of its digits is 3810240, while the sum is 53.

The spelling of 66791752622 in words is "sixty-six billion, seven hundred ninety-one million, seven hundred fifty-two thousand, six hundred twenty-two".