4001810066 has 32 divisors (see below), whose sum is σ = 6320775168. Its totient is φ = 1896546960.

The previous prime is 4001810063. The next prime is 4001810083. The reversal of 4001810066 is 6600181004.

4001810066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4001810063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3680975 + ... + 3682061.

It is an arithmetic number, because the mean of its divisors is an integer number (197524224).

Almost surely, 2^4001810066 is an apocalyptic number.

4001810066 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4001810066 is a deficient number, since it is larger than the sum of its proper divisors (2318965102).

4001810066 is a wasteful number, since it uses less digits than its factorization.

4001810066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4001810066 is about 63259.8614130635. The cubic root of 4001810066 is about 1587.6404575829.

The spelling of 4001810066 in words is "four billion, one million, eight hundred ten thousand, sixty-six".