4245221766 has 8 divisors (see below), whose sum is σ = 8490443544. Its totient is φ = 1415073920.

The previous prime is 4245221707. The next prime is 4245221789. The reversal of 4245221766 is 6671225424.

4245221766 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.

4245221766 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353768475 + ... + 353768486.

It is an arithmetic number, because the mean of its divisors is an integer number (1061305443).

Almost surely, 2^4245221766 is an apocalyptic number.

4245221766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4245221766 is a wasteful number, since it uses less digits than its factorization.

4245221766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707536966.

The product of its digits is 161280, while the sum is 39.

The square root of 4245221766 is about 65155.3663637923. The cubic root of 4245221766 is about 1619.1986289494.

The spelling of 4245221766 in words is "four billion, two hundred forty-five million, two hundred twenty-one thousand, seven hundred sixty-six".