646050264016643 has 4 divisors (see below), whose sum is σ = 646054726666608. Its totient is φ = 646045801366680.

The previous prime is 646050264016631. The next prime is 646050264016783. The reversal of 646050264016643 is 346610462050646.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 646050264016643 - 2⁴ = 646050264016627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646050264016613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2231107823 + ... + 2231397368.

It is an arithmetic number, because the mean of its divisors is an integer number (161513681666652).

Almost surely, 2^{646050264016643} is an apocalyptic number.

646050264016643 is a deficient number, since it is larger than the sum of its proper divisors (4462649965).

646050264016643 is a wasteful number, since it uses less digits than its factorization.

646050264016643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462649964.

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 646050264016643 in words is "six hundred forty-six trillion, fifty billion, two hundred sixty-four million, sixteen thousand, six hundred forty-three".