4066221610 has 32 divisors (see below), whose sum is σ = 7990088832. Its totient is φ = 1477606080.

The previous prime is 4066221581. The next prime is 4066221647. The reversal of 4066221610 is 161226604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157752 + ... + 181708.

It is an arithmetic number, because the mean of its divisors is an integer number (249690276).

Almost surely, 2^4066221610 is an apocalyptic number.

4066221610 is a deficient number, since it is larger than the sum of its proper divisors (3923867222).

4066221610 is a wasteful number, since it uses less digits than its factorization.

4066221610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25518.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4066221610 is about 63766.9319475228. The cubic root of 4066221610 is about 1596.1131709646.

The spelling of 4066221610 in words is "four billion, sixty-six million, two hundred twenty-one thousand, six hundred ten".