66042163046623 has 8 divisors (see below), whose sum is σ = 67146921836928. Its totient is φ = 64940905870104.

The previous prime is 66042163046599. The next prime is 66042163046663. The reversal of 66042163046623 is 32664036124066.

It is a happy number.

66042163046623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66042163046623 - 2⁴¹ = 63843139791071 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 (66042163046663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875365411 + ... + 875440852.

It is an arithmetic number, because the mean of its divisors is an integer number (8393365229616).

Almost surely, 2^{66042163046623} is an apocalyptic number.

66042163046623 is a deficient number, since it is larger than the sum of its proper divisors (1104758790305).

66042163046623 is a wasteful number, since it uses less digits than its factorization.

66042163046623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750806893.

The product of its (nonzero) digits is 4478976, while the sum is 49.

The spelling of 66042163046623 in words is "sixty-six trillion, forty-two billion, one hundred sixty-three million, forty-six thousand, six hundred twenty-three".