642466322606 has 16 divisors (see below), whose sum is σ = 966125402880. Its totient is φ = 320425330680.

The previous prime is 642466322581. The next prime is 642466322621. The reversal of 642466322606 is 606223664246.

It is a congruent number.

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, 1394891 + ... + 1797401.

It is an arithmetic number, because the mean of its divisors is an integer number (60382837680).

Almost surely, 2^642466322606 is an apocalyptic number.

642466322606 is a deficient number, since it is larger than the sum of its proper divisors (323659080274).

642466322606 is a wasteful number, since it uses less digits than its factorization.

642466322606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404519.

The product of its (nonzero) digits is 2985984, while the sum is 47.

The spelling of 642466322606 in words is "six hundred forty-two billion, four hundred sixty-six million, three hundred twenty-two thousand, six hundred six".