42666020446 has 64 divisors (see below), whose sum is σ = 74676142080. Its totient is φ = 17907120000.

The previous prime is 42666020417. The next prime is 42666020461. The reversal of 42666020446 is 64402066624.

It is a junction number, because it is equal to n+sod(n) for n = 42666020399 and 42666020408.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 64547356 + ... + 64548016.

It is an arithmetic number, because the mean of its divisors is an integer number (1166814720).

Almost surely, 2^42666020446 is an apocalyptic number.

42666020446 is a deficient number, since it is larger than the sum of its proper divisors (32010121634).

42666020446 is a wasteful number, since it uses less digits than its factorization.

42666020446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201.

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 42666020446 in words is "forty-two billion, six hundred sixty-six million, twenty thousand, four hundred forty-six".