66044610520422 has 32 divisors (see below), whose sum is σ = 132373796016384. Its totient is φ = 21967442244000.

The previous prime is 66044610520409. The next prime is 66044610520423. The reversal of 66044610520422 is 22402501644066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66044610520423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400914672 + ... + 401079372.

It is an arithmetic number, because the mean of its divisors is an integer number (4136681125512).

Almost surely, 2^{66044610520422} is an apocalyptic number.

66044610520422 is an abundant number, since it is smaller than the sum of its proper divisors (66329185495962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66044610520422 is a wasteful number, since it uses less digits than its factorization.

66044610520422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308284.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 66044610520422 in words is "sixty-six trillion, forty-four billion, six hundred ten million, five hundred twenty thousand, four hundred twenty-two".