6442550206 has 4 divisors (see below), whose sum is σ = 9663825312. Its totient is φ = 3221275102.

The previous prime is 6442550201. The next prime is 6442550209. The reversal of 6442550206 is 6020552446.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442550201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610637550 + ... + 1610637553.

It is an arithmetic number, because the mean of its divisors is an integer number (2415956328).

Almost surely, 2^6442550206 is an apocalyptic number.

6442550206 is a deficient number, since it is larger than the sum of its proper divisors (3221275106).

6442550206 is a wasteful number, since it uses less digits than its factorization.

6442550206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221275105.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 6442550206 is about 80265.4982293139. The cubic root of 6442550206 is about 1860.7410434118.

The spelling of 6442550206 in words is "six billion, four hundred forty-two million, five hundred fifty thousand, two hundred six".