2666610602 has 4 divisors (see below), whose sum is σ = 3999915906. Its totient is φ = 1333305300.

The previous prime is 2666610587. The next prime is 2666610619. The reversal of 2666610602 is 2060166662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2060166662 = 2 ⋅1030083331.

It can be written as a sum of positive squares in only one way, i.e., 1602480961 + 1064129641 = 40031^2 + 32621^2 .

It is a super-2 number, since 2×2666610602² = 14221624205397604808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666652649 + ... + 666652652.

Almost surely, 2^2666610602 is an apocalyptic number.

2666610602 is a deficient number, since it is larger than the sum of its proper divisors (1333305304).

2666610602 is a wasteful number, since it uses less digits than its factorization.

2666610602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333305303.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 2666610602 is about 51639.2351027782. The cubic root of 2666610602 is about 1386.7128303660.

The spelling of 2666610602 in words is "two billion, six hundred sixty-six million, six hundred ten thousand, six hundred two".