4220333666 has 4 divisors (see below), whose sum is σ = 6330500502. Its totient is φ = 2110166832.

The previous prime is 4220333629. The next prime is 4220333671. The reversal of 4220333666 is 6663330224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2413658641 + 1806675025 = 49129^2 + 42505^2 .

It is a super-2 number, since 2×4220333666² = 35622432504745999112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055083415 + ... + 1055083418.

Almost surely, 2^4220333666 is an apocalyptic number.

4220333666 is a deficient number, since it is larger than the sum of its proper divisors (2110166836).

4220333666 is a wasteful number, since it uses less digits than its factorization.

4220333666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110166835.

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 4220333666 is about 64964.0952065062. The cubic root of 4220333666 is about 1616.0281791908.

The spelling of 4220333666 in words is "four billion, two hundred twenty million, three hundred thirty-three thousand, six hundred sixty-six".