6402220264666 has 16 divisors (see below), whose sum is σ = 9609959472768. Its totient is φ = 3198900852000.

The previous prime is 6402220264639. The next prime is 6402220264717. The reversal of 6402220264666 is 6664620222046.

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, 32815486 + ... + 33010006.

It is an arithmetic number, because the mean of its divisors is an integer number (600622467048).

Almost surely, 2^{6402220264666} is an apocalyptic number.

6402220264666 is a deficient number, since it is larger than the sum of its proper divisors (3207739208102).

6402220264666 is a wasteful number, since it uses less digits than its factorization.

6402220264666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205797.

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

The spelling of 6402220264666 in words is "six trillion, four hundred two billion, two hundred twenty million, two hundred sixty-four thousand, six hundred sixty-six".