641650206 has 16 divisors (see below), whose sum is σ = 1283586048. Its totient is φ = 213835800.

The previous prime is 641650187. The next prime is 641650211. The reversal of 641650206 is 602056146.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27171 + ... + 44961.

It is an arithmetic number, because the mean of its divisors is an integer number (80224128).

Almost surely, 2^641650206 is an apocalyptic number.

641650206 is an abundant number, since it is smaller than the sum of its proper divisors (641935842).

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

641650206 is a wasteful number, since it uses less digits than its factorization.

641650206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23807.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 641650206 is about 25330.8153441613. The cubic root of 641650206 is about 862.5139197081.

The spelling of 641650206 in words is "six hundred forty-one million, six hundred fifty thousand, two hundred six".