2666642404202 has 16 divisors (see below), whose sum is σ = 4571810553600. Its totient is φ = 1142740850928.

The previous prime is 2666642404177. The next prime is 2666642404207. The reversal of 2666642404202 is 2024042466662.

It is a happy number.

2666642404202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2666642404202² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666642404207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8667893 + ... + 8970264.

It is an arithmetic number, because the mean of its divisors is an integer number (285738159600).

Almost surely, 2^{2666642404202} is an apocalyptic number.

2666642404202 is a deficient number, since it is larger than the sum of its proper divisors (1905168149398).

2666642404202 is a wasteful number, since it uses less digits than its factorization.

2666642404202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17648965.

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 2666642404202 in words is "two trillion, six hundred sixty-six billion, six hundred forty-two million, four hundred four thousand, two hundred two".