4002646646602 has 16 divisors (see below), whose sum is σ = 6008709683592. Its totient is φ = 1999744046080.

The previous prime is 4002646646599. The next prime is 4002646646657. The reversal of 4002646646602 is 2066466462004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2372681203201 + 1629965443401 = 1540351^2 + 1276701^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12817188 + ... + 13125760.

Almost surely, 2^{4002646646602} is an apocalyptic number.

4002646646602 is a deficient number, since it is larger than the sum of its proper divisors (2006063036990).

4002646646602 is a wasteful number, since it uses less digits than its factorization.

4002646646602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313673.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 4002646646602 in words is "four trillion, two billion, six hundred forty-six million, six hundred forty-six thousand, six hundred two".