2002666406604 has 24 divisors (see below), whose sum is σ = 4678933437360. Its totient is φ = 666691875264.

The previous prime is 2002666406581. The next prime is 2002666406621. The reversal of 2002666406604 is 4066046662002.

It is a super-2 number, since 2×2002666406604² (a number of 25 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, 107939539 + ... + 107958090.

It is an arithmetic number, because the mean of its divisors is an integer number (194955559890).

Almost surely, 2^{2002666406604} is an apocalyptic number.

It is an amenable number.

2002666406604 is an abundant number, since it is smaller than the sum of its proper divisors (2676267030756).

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

2002666406604 is a wasteful number, since it uses less digits than its factorization.

2002666406604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215898409 (or 215898407 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 2002666406604 in words is "two trillion, two billion, six hundred sixty-six million, four hundred six thousand, six hundred four".