4055221682 has 18 divisors (see below), whose sum is σ = 6256817847. Its totient is φ = 1971189504.

The previous prime is 4055221649. The next prime is 4055221691. The reversal of 4055221682 is 2861225504.

It can be written as a sum of positive squares in 5 ways, for example, as 3130514401 + 924707281 = 55951^2 + 30409^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=45029.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3331538 + ... + 3332754.

Almost surely, 2^4055221682 is an apocalyptic number.

4055221682 is a deficient number, since it is larger than the sum of its proper divisors (2201596165).

4055221682 is an frugal number, since it uses more digits than its factorization.

4055221682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 4055221682 is about 63680.6225000981. The cubic root of 4055221682 is about 1594.6726046510.

The spelling of 4055221682 in words is "four billion, fifty-five million, two hundred twenty-one thousand, six hundred eighty-two".