266223748050 has 162 divisors, whose sum is σ = 774920493711. Its totient is φ = 65496974400.

The previous prime is 266223747991. The next prime is 266223748061. The reversal of 266223748050 is 50847322662.

It can be written as a sum of positive squares in 5 ways, for example, as 16666551801 + 249557196249 = 129099^2 + 499557^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=364845.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 266223747987 and 266223748005.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 142288615 + ... + 142290485.

Almost surely, 2^266223748050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266223748050

266223748050 is an abundant number, since it is smaller than the sum of its proper divisors (508696745661).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266223748050 is a wasteful number, since it uses less digits than its factorization.

266223748050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 266223748050 in words is "two hundred sixty-six billion, two hundred twenty-three million, seven hundred forty-eight thousand, fifty".