66848560042 has 8 divisors (see below), whose sum is σ = 109388552832. Its totient is φ = 30385709100.

The previous prime is 66848560021. The next prime is 66848560049. The reversal of 66848560042 is 24006584866.

66848560042 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 not an unprimeable number, because it can be changed into a prime (66848560049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519285434 + ... + 1519285477.

It is an arithmetic number, because the mean of its divisors is an integer number (13673569104).

Almost surely, 2^66848560042 is an apocalyptic number.

66848560042 is a deficient number, since it is larger than the sum of its proper divisors (42539992790).

66848560042 is a wasteful number, since it uses less digits than its factorization.

66848560042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038570924.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 66848560042 in words is "sixty-six billion, eight hundred forty-eight million, five hundred sixty thousand, forty-two".