200406066 has 64 divisors (see below), whose sum is σ = 477722880. Its totient is φ = 54835200.

The previous prime is 200406049. The next prime is 200406071. The reversal of 200406066 is 660604002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166266 + ... + 167466.

It is an arithmetic number, because the mean of its divisors is an integer number (7464420).

Almost surely, 2^200406066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200406066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238861440).

200406066 is an abundant number, since it is smaller than the sum of its proper divisors (277316814).

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

200406066 is a wasteful number, since it uses less digits than its factorization.

200406066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 200406066 is about 14156.4849450702. The cubic root of 200406066 is about 585.1990614843.

It can be divided in two parts, 20040 and 6066, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 200406066 in words is "two hundred million, four hundred six thousand, sixty-six".