266371242173662 has 4 divisors (see below), whose sum is σ = 399556863260496. Its totient is φ = 133185621086830.

The previous prime is 266371242173657. The next prime is 266371242173713.

266371242173662 is nontrivially palindromic in base 10.

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

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 266371242173597 and 266371242173606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66592810543414 + ... + 66592810543417.

It is an arithmetic number, because the mean of its divisors is an integer number (99889215815124).

Almost surely, 2^{266371242173662} is an apocalyptic number.

266371242173662 is a deficient number, since it is larger than the sum of its proper divisors (133185621086834).

266371242173662 is a wasteful number, since it uses less digits than its factorization.

266371242173662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133185621086833.

The product of its digits is 36578304, while the sum is 58.

The spelling of 266371242173662 in words is "two hundred sixty-six trillion, three hundred seventy-one billion, two hundred forty-two million, one hundred seventy-three thousand, six hundred sixty-two".