266842884722 has 54 divisors (see below), whose sum is σ = 420118605837. Its totient is φ = 127113612000.

The previous prime is 266842884701. The next prime is 266842884733. The reversal of 266842884722 is 227488248662.

It can be written as a sum of positive squares in 2 ways, for example, as 190568044681 + 76274840041 = 436541^2 + 276179^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=365269.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

Its product of digits (33030144) is a multiple of the sum of its prime factors (504).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1767171347 + ... + 1767171497.

Almost surely, 2^266842884722 is an apocalyptic number.

266842884722 is a deficient number, since it is larger than the sum of its proper divisors (153275721115).

266842884722 is an frugal number, since it uses more digits than its factorization.

266842884722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 253 counting only the distinct ones).

The product of its digits is 33030144, while the sum is 59.

The spelling of 266842884722 in words is "two hundred sixty-six billion, eight hundred forty-two million, eight hundred eighty-four thousand, seven hundred twenty-two".