66044610520429 has 8 divisors (see below), whose sum is σ = 69943432402368. Its totient is φ = 62147326948800.

The previous prime is 66044610520423. The next prime is 66044610520519. The reversal of 66044610520429 is 92402501644066.

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

It is a cyclic number.

It is not a de Polignac number, because 66044610520429 - 2⁹ = 66044610519917 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 384489177 + ... + 384660910.

It is an arithmetic number, because the mean of its divisors is an integer number (8742929050296).

Almost surely, 2^{66044610520429} is an apocalyptic number.

It is an amenable number.

66044610520429 is a deficient number, since it is larger than the sum of its proper divisors (3898821881939).

66044610520429 is a wasteful number, since it uses less digits than its factorization.

66044610520429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769155155.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 66044610520429 in words is "sixty-six trillion, forty-four billion, six hundred ten million, five hundred twenty thousand, four hundred twenty-nine".