646062727260646 has 16 divisors (see below), whose sum is σ = 970394475161808. Its totient is φ = 322598192637600.

The previous prime is 646062727260607. The next prime is 646062727260661.

646062727260646 is nontrivially palindromic in base 10.

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, 68157145 + ... + 77055316.

It is an arithmetic number, because the mean of its divisors is an integer number (60649654697613).

Almost surely, 2^{646062727260646} is an apocalyptic number.

646062727260646 is a deficient number, since it is larger than the sum of its proper divisors (324331747901162).

646062727260646 is a wasteful number, since it uses less digits than its factorization.

646062727260646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145215447.

The product of its (nonzero) digits is 292626432, while the sum is 64.

The spelling of 646062727260646 in words is "six hundred forty-six trillion, sixty-two billion, seven hundred twenty-seven million, two hundred sixty thousand, six hundred forty-six".