42066220066246 has 16 divisors (see below), whose sum is σ = 66503685472560. Its totient is φ = 19901102842080.

The previous prime is 42066220066243. The next prime is 42066220066267. The reversal of 42066220066246 is 64266002266024.

It is a junction number, because it is equal to n+sod(n) for n = 42066220066196 and 42066220066205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42066220066243) 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, 694452645 + ... + 694513216.

It is an arithmetic number, because the mean of its divisors is an integer number (4156480342035).

Almost surely, 2^{42066220066246} is an apocalyptic number.

42066220066246 is a deficient number, since it is larger than the sum of its proper divisors (24437465406314).

42066220066246 is a wasteful number, since it uses less digits than its factorization.

42066220066246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388966679.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 42066220066246 in words is "forty-two trillion, sixty-six billion, two hundred twenty million, sixty-six thousand, two hundred forty-six".