647846564216 has 16 divisors (see below), whose sum is σ = 1231820933040. Its totient is φ = 319360982080.

The previous prime is 647846564177. The next prime is 647846564269. The reversal of 647846564216 is 612465648746.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570286901 + ... + 570288036.

It is an arithmetic number, because the mean of its divisors is an integer number (76988808315).

Almost surely, 2^647846564216 is an apocalyptic number.

It is an amenable number.

647846564216 is a deficient number, since it is larger than the sum of its proper divisors (583974368824).

647846564216 is a wasteful number, since it uses less digits than its factorization.

647846564216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140575014 (or 1140575010 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 59.

The spelling of 647846564216 in words is "six hundred forty-seven billion, eight hundred forty-six million, five hundred sixty-four thousand, two hundred sixteen".