266122606 has 4 divisors (see below), whose sum is σ = 399183912. Its totient is φ = 133061302.

The previous prime is 266122603. The next prime is 266122609. The reversal of 266122606 is 606221662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 606221662 = 2 ⋅303110831.

It is an interprime number because it is at equal distance from previous prime (266122603) and next prime (266122609).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266122603) by changing a digit.

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 as a sum of consecutive naturals, namely, 66530650 + ... + 66530653.

It is an arithmetic number, because the mean of its divisors is an integer number (99795978).

Almost surely, 2^266122606 is an apocalyptic number.

266122606 is a deficient number, since it is larger than the sum of its proper divisors (133061306).

266122606 is a wasteful number, since it uses less digits than its factorization.

266122606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133061305.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 266122606 is about 16313.2647253700. The cubic root of 266122606 is about 643.2215543727.

The spelling of 266122606 in words is "two hundred sixty-six million, one hundred twenty-two thousand, six hundred six".