266121662 has 4 divisors (see below), whose sum is σ = 399182496. Its totient is φ = 133060830.

The previous prime is 266121643. The next prime is 266121673.

266121662 is nontrivially palindromic in base 10.

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

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 as a sum of consecutive naturals, namely, 66530414 + ... + 66530417.

It is an arithmetic number, because the mean of its divisors is an integer number (99795624).

Almost surely, 2^266121662 is an apocalyptic number.

266121662 is a deficient number, since it is larger than the sum of its proper divisors (133060834).

266121662 is a wasteful number, since it uses less digits than its factorization.

266121662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133060833.

The product of its digits is 10368, while the sum is 32.

The square root of 266121662 is about 16313.2357918348. The cubic root of 266121662 is about 643.2207938187.

The spelling of 266121662 in words is "two hundred sixty-six million, one hundred twenty-one thousand, six hundred sixty-two".