646741312056716 has 24 divisors (see below), whose sum is σ = 1144515924311760. Its totient is φ = 319736773711872.

The previous prime is 646741312056667. The next prime is 646741312056739. The reversal of 646741312056716 is 617650213147646.

It is a super-3 number, since 3×646741312056716³ (a number of 45 digits) contains 333 as substring.

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, 336459500 + ... + 338376236.

It is an arithmetic number, because the mean of its divisors is an integer number (47688163512990).

Almost surely, 2^{646741312056716} is an apocalyptic number.

It is an amenable number.

646741312056716 is a deficient number, since it is larger than the sum of its proper divisors (497774612255044).

646741312056716 is a wasteful number, since it uses less digits than its factorization.

646741312056716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864633 (or 2864631 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 646741312056716 in words is "six hundred forty-six trillion, seven hundred forty-one billion, three hundred twelve million, fifty-six thousand, seven hundred sixteen".