643143030006 has 32 divisors (see below), whose sum is σ = 1318315130496. Its totient is φ = 209048040000.

The previous prime is 643143029999. The next prime is 643143030041. The reversal of 643143030006 is 600030341346.

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, 155320 + ... + 1144731.

It is an arithmetic number, because the mean of its divisors is an integer number (41197347828).

Almost surely, 2^643143030006 is an apocalyptic number.

643143030006 is an abundant number, since it is smaller than the sum of its proper divisors (675172100490).

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

643143030006 is a wasteful number, since it uses less digits than its factorization.

643143030006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302108.

The product of its (nonzero) digits is 15552, while the sum is 30.

The spelling of 643143030006 in words is "six hundred forty-three billion, one hundred forty-three million, thirty thousand, six".