2666660246 has 8 divisors (see below), whose sum is σ = 4000596264. Its totient is φ = 1333128160.

The previous prime is 2666660237. The next prime is 2666660251. The reversal of 2666660246 is 6420666662.

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

It is a super-2 number, since 2×2666660246² = 14222153735193561032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666660197 and 2666660206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83900 + ... + 111231.

It is an arithmetic number, because the mean of its divisors is an integer number (500074533).

Almost surely, 2^2666660246 is an apocalyptic number.

2666660246 is a deficient number, since it is larger than the sum of its proper divisors (1333936018).

2666660246 is a wasteful number, since it uses less digits than its factorization.

2666660246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201966.

The product of its (nonzero) digits is 746496, while the sum is 44.

The square root of 2666660246 is about 51639.7157815571. The cubic root of 2666660246 is about 1386.7214357400.

The spelling of 2666660246 in words is "two billion, six hundred sixty-six million, six hundred sixty thousand, two hundred forty-six".