643232342466206 has 32 divisors (see below), whose sum is σ = 980997159395520. Its totient is φ = 316236864787200.

The previous prime is 643232342466193. The next prime is 643232342466227. The reversal of 643232342466206 is 602664243232346.

It is a congruent number.

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, 9069922415 + ... + 9069993333.

It is an arithmetic number, because the mean of its divisors is an integer number (30656161231110).

Almost surely, 2^{643232342466206} is an apocalyptic number.

643232342466206 is a deficient number, since it is larger than the sum of its proper divisors (337764816929314).

643232342466206 is a wasteful number, since it uses less digits than its factorization.

643232342466206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95060.

The product of its (nonzero) digits is 35831808, while the sum is 53.

The spelling of 643232342466206 in words is "six hundred forty-three trillion, two hundred thirty-two billion, three hundred forty-two million, four hundred sixty-six thousand, two hundred six".