206466664602 has 256 divisors, whose sum is σ = 491979847680. Its totient is φ = 57106944000.

The previous prime is 206466664567. The next prime is 206466664609.

206466664602 is nontrivially palindromic in base 10.

206466664602 is digitally balanced in base 3, 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 (206466664609) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1266666573 + ... + 1266666735.

It is an arithmetic number, because the mean of its divisors is an integer number (1921796280).

Almost surely, 2^206466664602 is an apocalyptic number.

206466664602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 206466664602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245989923840).

206466664602 is an abundant number, since it is smaller than the sum of its proper divisors (285513183078).

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

206466664602 is a wasteful number, since it uses less digits than its factorization.

206466664602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 2985984, while the sum is 48.

It can be divided in two parts, 2064 and 66664602, that added together give a palindrome (66666666).

The spelling of 206466664602 in words is "two hundred six billion, four hundred sixty-six million, six hundred sixty-four thousand, six hundred two".