646050123006656 has 56 divisors (see below), whose sum is σ = 1300072197330720. Its totient is φ = 318472946892800.

The previous prime is 646050123006649. The next prime is 646050123006667. The reversal of 646050123006656 is 656600321050646.

It is a super-2 number, since 2×646050123006656² (a number of 30 digits) contains 22 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, 678584210 + ... + 679535598.

Almost surely, 2^{646050123006656} is an apocalyptic number.

It is an amenable number.

646050123006656 is an abundant number, since it is smaller than the sum of its proper divisors (654022074324064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646050123006656 is a wasteful number, since it uses less digits than its factorization.

646050123006656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100913 (or 1100903 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 646050123006656 in words is "six hundred forty-six trillion, fifty billion, one hundred twenty-three million, six thousand, six hundred fifty-six".