66078075043 has 8 divisors (see below), whose sum is σ = 66547955088. Its totient is φ = 65609205984.

The previous prime is 66078074941. The next prime is 66078075059. The reversal of 66078075043 is 34057087066.

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 66078075043 - 2¹³ = 66078066851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66078074984 and 66078075002.

It is not an unprimeable number, because it can be changed into a prime (66078075083) by changing a digit.

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, 121321 + ... + 383242.

It is an arithmetic number, because the mean of its divisors is an integer number (8318494386).

Almost surely, 2^66078075043 is an apocalyptic number.

66078075043 is a deficient number, since it is larger than the sum of its proper divisors (469880045).

66078075043 is a wasteful number, since it uses less digits than its factorization.

66078075043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505493.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 66078075043 in words is "sixty-six billion, seventy-eight million, seventy-five thousand, forty-three".