4664646206420 has 24 divisors (see below), whose sum is σ = 9826658488584. Its totient is φ = 1859972491136.

The previous prime is 4664646206411. The next prime is 4664646206443. The reversal of 4664646206420 is 246026464664.

It can be written as a sum of positive squares in 4 ways, for example, as 222348085444 + 4442298120976 = 471538^2 + 2107676^2 .

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, 367867967 + ... + 367880646.

It is an arithmetic number, because the mean of its divisors is an integer number (409444103691).

Almost surely, 2^{4664646206420} is an apocalyptic number.

It is an amenable number.

4664646206420 is an abundant number, since it is smaller than the sum of its proper divisors (5162012282164).

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

4664646206420 is a wasteful number, since it uses less digits than its factorization.

4664646206420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735748939 (or 735748937 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 50.

The spelling of 4664646206420 in words is "four trillion, six hundred sixty-four billion, six hundred forty-six million, two hundred six thousand, four hundred twenty".