2665995662 has 16 divisors (see below), whose sum is σ = 4398596784. Its totient is φ = 1211815000.

The previous prime is 2665995643. The next prime is 2665995679.

2665995662 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2665995598 and 2665995607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498089 + ... + 503412.

It is an arithmetic number, because the mean of its divisors is an integer number (274912299).

Almost surely, 2^2665995662 is an apocalyptic number.

2665995662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2665995662 is a deficient number, since it is larger than the sum of its proper divisors (1732601122).

2665995662 is a wasteful number, since it uses less digits than its factorization.

2665995662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001536 (or 1001514 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 56.

The square root of 2665995662 is about 51633.2805659296. The cubic root of 2665995662 is about 1386.6062267815.

The spelling of 2665995662 in words is "two billion, six hundred sixty-five million, nine hundred ninety-five thousand, six hundred sixty-two".