264440634064550 has 48 divisors (see below), whose sum is σ = 521230504737600. Its totient is φ = 99637850323200.

The previous prime is 264440634064501. The next prime is 264440634064577. The reversal of 264440634064550 is 55460436044462.

It is a super-2 number, since 2×264440634064550² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 264440634064492 and 264440634064501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2223999710 + ... + 2224118609.

It is an arithmetic number, because the mean of its divisors is an integer number (10858968848700).

Almost surely, 2^{264440634064550} is an apocalyptic number.

264440634064550 is a deficient number, since it is larger than the sum of its proper divisors (256789870673050).

264440634064550 is a wasteful number, since it uses less digits than its factorization.

264440634064550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448118401 (or 4448118396 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 53.

The spelling of 264440634064550 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred thirty-four million, sixty-four thousand, five hundred fifty".