2666555602 has 8 divisors (see below), whose sum is σ = 4000470012. Its totient is φ = 1333065600.

The previous prime is 2666555599. The next prime is 2666555609. The reversal of 2666555602 is 2065556662.

2666555602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2273287041 + 393268561 = 47679^2 + 19831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2666555602² = 14221037557115164808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666555609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89899 + ... + 115822.

Almost surely, 2^2666555602 is an apocalyptic number.

2666555602 is a deficient number, since it is larger than the sum of its proper divisors (1333914410).

2666555602 is a wasteful number, since it uses less digits than its factorization.

2666555602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212204.

The product of its (nonzero) digits is 648000, while the sum is 43.

The square root of 2666555602 is about 51638.7025592239. The cubic root of 2666555602 is about 1386.7032964493.

The spelling of 2666555602 in words is "two billion, six hundred sixty-six million, five hundred fifty-five thousand, six hundred two".