266248226654 has 4 divisors (see below), whose sum is σ = 399372339984. Its totient is φ = 133124113326.

The previous prime is 266248226627. The next prime is 266248226669. The reversal of 266248226654 is 456622842662.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 266248226596 and 266248226605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66562056662 + ... + 66562056665.

It is an arithmetic number, because the mean of its divisors is an integer number (99843084996).

Almost surely, 2^266248226654 is an apocalyptic number.

266248226654 is a deficient number, since it is larger than the sum of its proper divisors (133124113330).

266248226654 is a wasteful number, since it uses less digits than its factorization.

266248226654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133124113329.

The product of its digits is 13271040, while the sum is 53.

The spelling of 266248226654 in words is "two hundred sixty-six billion, two hundred forty-eight million, two hundred twenty-six thousand, six hundred fifty-four".