266503074442 has 16 divisors (see below), whose sum is σ = 436371484032. Its totient is φ = 121061221120.

The previous prime is 266503074433. The next prime is 266503074443. The reversal of 266503074442 is 244470305662.

It is a super-2 number, since 2×266503074442² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266503074443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3791383 + ... + 3861034.

It is an arithmetic number, because the mean of its divisors is an integer number (27273217752).

Almost surely, 2^266503074442 is an apocalyptic number.

266503074442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

266503074442 is a deficient number, since it is larger than the sum of its proper divisors (169868409590).

266503074442 is a wasteful number, since it uses less digits than its factorization.

266503074442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654013.

The product of its (nonzero) digits is 967680, while the sum is 43.

The spelling of 266503074442 in words is "two hundred sixty-six billion, five hundred three million, seventy-four thousand, four hundred forty-two".