206231221166466 has 16 divisors (see below), whose sum is σ = 412479801417888. Its totient is φ = 68740847208000.

The previous prime is 206231221166441. The next prime is 206231221166479. The reversal of 206231221166466 is 664661122132602.

206231221166466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723140760 + ... + 723425891.

It is an arithmetic number, because the mean of its divisors is an integer number (25779987588618).

Almost surely, 2^{206231221166466} is an apocalyptic number.

206231221166466 is an abundant number, since it is smaller than the sum of its proper divisors (206248580251422).

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

206231221166466 is a wasteful number, since it uses less digits than its factorization.

206231221166466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446590417.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 206231221166466 in words is "two hundred six trillion, two hundred thirty-one billion, two hundred twenty-one million, one hundred sixty-six thousand, four hundred sixty-six".