2666886662 has 128 divisors (see below), whose sum is σ = 5082144768. Its totient is φ = 1034035200.

The previous prime is 2666886637. The next prime is 2666886707.

2666886662 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2666886662² = 14224568935907004488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666886598 and 2666886607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19466258 + ... + 19466394.

It is an arithmetic number, because the mean of its divisors is an integer number (39704256).

Almost surely, 2^2666886662 is an apocalyptic number.

2666886662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2666886662 is a deficient number, since it is larger than the sum of its proper divisors (2415258106).

2666886662 is a wasteful number, since it uses less digits than its factorization.

2666886662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its digits is 11943936, while the sum is 56.

The square root of 2666886662 is about 51641.9080011574. The cubic root of 2666886662 is about 1386.7606817138.

The spelling of 2666886662 in words is "two billion, six hundred sixty-six million, eight hundred eighty-six thousand, six hundred sixty-two".