66206045042 has 8 divisors (see below), whose sum is σ = 100791292656. Its totient is φ = 32608947492.

The previous prime is 66206045041. The next prime is 66206045047. The reversal of 66206045042 is 24054060266.

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

It is a junction number, because it is equal to n+sod(n) for n = 66206044993 and 66206045011.

It is not an unprimeable number, because it can be changed into a prime (66206045041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247037348 + ... + 247037615.

It is an arithmetic number, because the mean of its divisors is an integer number (12598911582).

Almost surely, 2^66206045042 is an apocalyptic number.

66206045042 is a deficient number, since it is larger than the sum of its proper divisors (34585247614).

66206045042 is a wasteful number, since it uses less digits than its factorization.

66206045042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494075032.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 66206045042 in words is "sixty-six billion, two hundred six million, forty-five thousand, forty-two".