2666163233066 has 4 divisors (see below), whose sum is σ = 3999244849602. Its totient is φ = 1333081616532.

The previous prime is 2666163233047. The next prime is 2666163233077. The reversal of 2666163233066 is 6603323616662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2205150750625 + 461012482441 = 1484975^2 + 678979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666540808265 + ... + 666540808268.

Almost surely, 2^{2666163233066} is an apocalyptic number.

2666163233066 is a deficient number, since it is larger than the sum of its proper divisors (1333081616536).

2666163233066 is a wasteful number, since it uses less digits than its factorization.

2666163233066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333081616535.

The product of its (nonzero) digits is 5038848, while the sum is 50.

The spelling of 2666163233066 in words is "two trillion, six hundred sixty-six billion, one hundred sixty-three million, two hundred thirty-three thousand, sixty-six".