2622002666 has 4 divisors (see below), whose sum is σ = 3933004002. Its totient is φ = 1311001332.

The previous prime is 2622002651. The next prime is 2622002729. The reversal of 2622002666 is 6662002262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2292398641 + 329604025 = 47879^2 + 18155^2 .

It is a super-3 number, since 3×2622002666³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655500665 + ... + 655500668.

Almost surely, 2^2622002666 is an apocalyptic number.

2622002666 is a deficient number, since it is larger than the sum of its proper divisors (1311001336).

2622002666 is a wasteful number, since it uses less digits than its factorization.

2622002666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311001335.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 2622002666 is about 51205.4944903377. The cubic root of 2622002666 is about 1378.9368458610.

The spelling of 2622002666 in words is "two billion, six hundred twenty-two million, two thousand, six hundred sixty-six".