2666208284242 has 64 divisors (see below), whose sum is σ = 4442975297280. Its totient is φ = 1194185631744.

The previous prime is 2666208284239. The next prime is 2666208284251. The reversal of 2666208284242 is 2424828026662.

2666208284242 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 2×2666208284242² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666208284242.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149921283 + ... + 149939065.

It is an arithmetic number, because the mean of its divisors is an integer number (69421489020).

Almost surely, 2^{2666208284242} is an apocalyptic number.

2666208284242 is a deficient number, since it is larger than the sum of its proper divisors (1776767013038).

2666208284242 is a wasteful number, since it uses less digits than its factorization.

2666208284242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19987.

The product of its (nonzero) digits is 7077888, while the sum is 52.

The spelling of 2666208284242 in words is "two trillion, six hundred sixty-six billion, two hundred eight million, two hundred eighty-four thousand, two hundred forty-two".