2666996662 has 16 divisors (see below), whose sum is σ = 4367153232. Its totient is φ = 1211444320.

The previous prime is 2666996653. The next prime is 2666996711.

It is a happy number.

2666996662 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2666996662² = 14225742390238284488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666996597 and 2666996606.

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, 7753 + ... + 73444.

It is an arithmetic number, because the mean of its divisors is an integer number (272947077).

Almost surely, 2^2666996662 is an apocalyptic number.

2666996662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2666996662 is a deficient number, since it is larger than the sum of its proper divisors (1700156570).

2666996662 is a wasteful number, since it uses less digits than its factorization.

2666996662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82703.

The product of its digits is 15116544, while the sum is 58.

The square root of 2666996662 is about 51642.9730166651. The cubic root of 2666996662 is about 1386.7797478381.

The spelling of 2666996662 in words is "two billion, six hundred sixty-six million, nine hundred ninety-six thousand, six hundred sixty-two".