264401103506 has 4 divisors (see below), whose sum is σ = 396601655262. Its totient is φ = 132200551752.

The previous prime is 264401103503. The next prime is 264401103521. The reversal of 264401103506 is 605301104462.

264401103506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 260901316225 + 3499787281 = 510785^2 + 59159^2 .

It is not an unprimeable number, because it can be changed into a prime (264401103503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66100275875 + ... + 66100275878.

Almost surely, 2^264401103506 is an apocalyptic number.

264401103506 is a deficient number, since it is larger than the sum of its proper divisors (132200551756).

264401103506 is a wasteful number, since it uses less digits than its factorization.

264401103506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132200551755.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 264401103506 its reverse (605301104462), we get a palindrome (869702207968).

The spelling of 264401103506 in words is "two hundred sixty-four billion, four hundred one million, one hundred three thousand, five hundred six".