266706662 has 8 divisors (see below), whose sum is σ = 401854656. Its totient is φ = 132755112.

The previous prime is 266706647. The next prime is 266706697. The reversal of 266706662 is 266607662.

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

It is a super-2 number, since 2×266706662² = 142264887110364488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298553 + ... + 299444.

It is an arithmetic number, because the mean of its divisors is an integer number (50231832).

Almost surely, 2^266706662 is an apocalyptic number.

266706662 is a deficient number, since it is larger than the sum of its proper divisors (135147994).

266706662 is a wasteful number, since it uses less digits than its factorization.

266706662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598222.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 266706662 is about 16331.1561746252. The cubic root of 266706662 is about 643.6917673533.

The spelling of 266706662 in words is "two hundred sixty-six million, seven hundred six thousand, six hundred sixty-two".